modiloader | f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63

Analysis

max time kernel
149s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 04:10

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General

Target

f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
Size

90KB
MD5

64709d9fc11d5ef95aa12a88581baf5e
SHA1

cc3b45357b755c5c6deba2476f9a61c0b424882f
SHA256

f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63
SHA512

bc7cc097d80b5b2184147960822efa18cb6123a095045923918fa2aedf09f70b2ee063627bd815b2a71721df510fca907d0b90a2758204401ee9ddb26522ec4a
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDC:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE34

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Modiloader family
modiloader

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/484-265-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1280	csrsll.exe
692	csrsll.exe
484	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2636	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
2636	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
2636	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
2636	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
2636	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1916 set thread context of 2636	1916	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	30
PID 1280 set thread context of 692	1280	csrsll.exe	35
PID 1280 set thread context of 484	1280	csrsll.exe	36

UPX packed file 23 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1916-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1916-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2636-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2636-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1916-101-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2636-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1916-94-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2636-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1916-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2636-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2636-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2636-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2636-134-0x0000000003100000-0x0000000003153000-memory.dmp	upx
behavioral1/files/0x000800000001211a-136.dat	upx
behavioral1/memory/2636-147-0x0000000003100000-0x0000000003153000-memory.dmp	upx
behavioral1/memory/2636-155-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1916-154-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1280-227-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/484-252-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1280-255-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2636-260-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/692-262-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/484-265-0x0000000000400000-0x0000000000414000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe
Token: SeDebugPrivilege	692	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1916	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
2636	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
1280	csrsll.exe
692	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 2636	1916	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	30
PID 1916 wrote to memory of 2636	1916	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	30
PID 1916 wrote to memory of 2636	1916	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	30
PID 1916 wrote to memory of 2636	1916	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	30
PID 1916 wrote to memory of 2636	1916	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	30
PID 1916 wrote to memory of 2636	1916	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	30
PID 1916 wrote to memory of 2636	1916	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	30
PID 1916 wrote to memory of 2636	1916	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	30
PID 2636 wrote to memory of 2820	2636	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	31
PID 2636 wrote to memory of 2820	2636	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	31
PID 2636 wrote to memory of 2820	2636	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	31
PID 2636 wrote to memory of 2820	2636	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	31
PID 2820 wrote to memory of 1724	2820	cmd.exe	33
PID 2820 wrote to memory of 1724	2820	cmd.exe	33
PID 2820 wrote to memory of 1724	2820	cmd.exe	33
PID 2820 wrote to memory of 1724	2820	cmd.exe	33
PID 2636 wrote to memory of 1280	2636	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	34
PID 2636 wrote to memory of 1280	2636	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	34
PID 2636 wrote to memory of 1280	2636	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	34
PID 2636 wrote to memory of 1280	2636	f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe	34
PID 1280 wrote to memory of 692	1280	csrsll.exe	35
PID 1280 wrote to memory of 692	1280	csrsll.exe	35
PID 1280 wrote to memory of 692	1280	csrsll.exe	35
PID 1280 wrote to memory of 692	1280	csrsll.exe	35
PID 1280 wrote to memory of 692	1280	csrsll.exe	35
PID 1280 wrote to memory of 692	1280	csrsll.exe	35
PID 1280 wrote to memory of 692	1280	csrsll.exe	35
PID 1280 wrote to memory of 692	1280	csrsll.exe	35
PID 1280 wrote to memory of 484	1280	csrsll.exe	36
PID 1280 wrote to memory of 484	1280	csrsll.exe	36
PID 1280 wrote to memory of 484	1280	csrsll.exe	36
PID 1280 wrote to memory of 484	1280	csrsll.exe	36
PID 1280 wrote to memory of 484	1280	csrsll.exe	36
PID 1280 wrote to memory of 484	1280	csrsll.exe	36
PID 1280 wrote to memory of 484	1280	csrsll.exe	36
PID 1280 wrote to memory of 484	1280	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
"C:\Users\Admin\AppData\Local\Temp\f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Users\Admin\AppData\Local\Temp\f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe
  "C:\Users\Admin\AppData\Local\Temp\f2b870dacb9727ba0186d884026aee742a116fd8f665a54e9c9be6f1bbebcd63.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\LRWIG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2820
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:1724
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1280
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:692
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\LRWIG.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
90KB

MD5
86e27a13beb1adfeafa7b2ad011482c4

SHA1
5d5c6f63876d7095df1de7692244b2ff7545ec5e

SHA256
455d51a76a93981ec29252801b7fd29559ba22aad71af8514b2ccc7a1a0b2ad8

SHA512
b8ace9d3531cfd28da6d712cc7a8c8347c1986b0e2eb178203840286c5175e420523613c5d46d0e6b97f9bd58705b2737bc070f9eb1b6984d13467b4f6b985d9

Download Submit
memory/484-265-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/484-252-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/692-262-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1280-255-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1280-168-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/1280-227-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1280-158-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1916-94-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1916-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1916-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1916-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1916-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1916-71-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/1916-61-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/1916-41-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/1916-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1916-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1916-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1916-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1916-80-0x0000000000390000-0x0000000000392000-memory.dmp

Filesize
8KB

Download
memory/1916-154-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1916-101-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2636-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-260-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-150-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/2636-149-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/2636-148-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/2636-147-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/2636-155-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-134-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/2636-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-223-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/2636-218-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/2636-216-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/2636-215-0x0000000003100000-0x0000000003153000-memory.dmp

Filesize
332KB

Download
memory/2636-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2636-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads