modiloader | a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053

Analysis

max time kernel
118s
max time network
20s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-11-2024 08:50

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General

Target

a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe
Size

90KB
MD5

83333beda7d1962e1472b708f3766f10
SHA1

d6fc9a0f5bd6423861c2e7a3c8294ebe6e897780
SHA256

a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053
SHA512

cdbdcda4e77dbc765eb047e7ec00817d7c9044346140432e46029f373a1dac5f5532dc461c69cfaf9ee9a4b764a0ce76710a86cc91d797a62b129d927c0fa92a
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/2400-259-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1220	csrsll.exe
1600	csrsll.exe
2400	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2588	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe
2588	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe
2588	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe
2588	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe
2588	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.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-1-5-21-3290804112-2823094203-3137964600-1000\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 2308 set thread context of 2588	2308	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	31
PID 1220 set thread context of 1600	1220	csrsll.exe	36
PID 1220 set thread context of 2400	1220	csrsll.exe	37

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2308-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2308-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2308-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2588-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2308-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2588-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2588-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2588-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2588-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2588-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2588-131-0x0000000002740000-0x0000000002793000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-129.dat	upx
behavioral1/memory/2588-144-0x0000000002740000-0x0000000002793000-memory.dmp	upx
behavioral1/memory/2588-149-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1220-212-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2588-211-0x0000000002740000-0x0000000002793000-memory.dmp	upx
behavioral1/memory/2400-248-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1220-250-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2588-253-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1220-247-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1600-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2400-259-0x0000000000400000-0x0000000000414000-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	reg.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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe
Token: SeDebugPrivilege	1600	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2308	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe
2588	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe
1220	csrsll.exe
1600	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 2588	2308	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	31
PID 2308 wrote to memory of 2588	2308	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	31
PID 2308 wrote to memory of 2588	2308	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	31
PID 2308 wrote to memory of 2588	2308	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	31
PID 2308 wrote to memory of 2588	2308	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	31
PID 2308 wrote to memory of 2588	2308	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	31
PID 2308 wrote to memory of 2588	2308	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	31
PID 2308 wrote to memory of 2588	2308	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	31
PID 2588 wrote to memory of 1544	2588	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	32
PID 2588 wrote to memory of 1544	2588	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	32
PID 2588 wrote to memory of 1544	2588	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	32
PID 2588 wrote to memory of 1544	2588	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	32
PID 1544 wrote to memory of 2060	1544	cmd.exe	34
PID 1544 wrote to memory of 2060	1544	cmd.exe	34
PID 1544 wrote to memory of 2060	1544	cmd.exe	34
PID 1544 wrote to memory of 2060	1544	cmd.exe	34
PID 2588 wrote to memory of 1220	2588	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	35
PID 2588 wrote to memory of 1220	2588	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	35
PID 2588 wrote to memory of 1220	2588	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	35
PID 2588 wrote to memory of 1220	2588	a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe	35
PID 1220 wrote to memory of 1600	1220	csrsll.exe	36
PID 1220 wrote to memory of 1600	1220	csrsll.exe	36
PID 1220 wrote to memory of 1600	1220	csrsll.exe	36
PID 1220 wrote to memory of 1600	1220	csrsll.exe	36
PID 1220 wrote to memory of 1600	1220	csrsll.exe	36
PID 1220 wrote to memory of 1600	1220	csrsll.exe	36
PID 1220 wrote to memory of 1600	1220	csrsll.exe	36
PID 1220 wrote to memory of 1600	1220	csrsll.exe	36
PID 1220 wrote to memory of 2400	1220	csrsll.exe	37
PID 1220 wrote to memory of 2400	1220	csrsll.exe	37
PID 1220 wrote to memory of 2400	1220	csrsll.exe	37
PID 1220 wrote to memory of 2400	1220	csrsll.exe	37
PID 1220 wrote to memory of 2400	1220	csrsll.exe	37
PID 1220 wrote to memory of 2400	1220	csrsll.exe	37
PID 1220 wrote to memory of 2400	1220	csrsll.exe	37
PID 1220 wrote to memory of 2400	1220	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe
"C:\Users\Admin\AppData\Local\Temp\a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Users\Admin\AppData\Local\Temp\a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe
  "C:\Users\Admin\AppData\Local\Temp\a985c8b9d1a5abeb4a37f6f869842ff48d9b76367049be51990acdc7305d7053N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2588
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\NBCWT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1544
  - - 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:2060
- - 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:1220
  - - 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:1600
  - - 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:2400

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\NBCWT.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
5cd5d7c646fa28098bb5eeb853871b23

SHA1
7fcae2709869d5647a3e51ba2ecf44d84d2dc47a

SHA256
03a08866f471b1d65a44755456aba40b3cfb99e7353840560e28ad9e7a8a1520

SHA512
385a7a9e4d4b2bd42966bc749a45143598f6be0677959cb5bb565f0b4bfa3573c6a5337872d98723abadb29966fb71640f8c5dd27f6d1295845622c6e8f8d12e

Download Submit
memory/1220-247-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1220-250-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1220-173-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1220-212-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1220-162-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1220-152-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1600-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2308-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2308-5-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2308-29-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2308-103-0x00000000024C0000-0x0000000002513000-memory.dmp

Filesize
332KB

Download
memory/2308-79-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/2308-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2308-3-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2308-41-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2308-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2308-15-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2308-71-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2308-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2308-23-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2308-61-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/2400-259-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2400-248-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2588-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2588-208-0x0000000002740000-0x0000000002793000-memory.dmp

Filesize
332KB

Download
memory/2588-149-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2588-145-0x0000000002740000-0x0000000002793000-memory.dmp

Filesize
332KB

Download
memory/2588-131-0x0000000002740000-0x0000000002793000-memory.dmp

Filesize
332KB

Download
memory/2588-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2588-211-0x0000000002740000-0x0000000002793000-memory.dmp

Filesize
332KB

Download
memory/2588-144-0x0000000002740000-0x0000000002793000-memory.dmp

Filesize
332KB

Download
memory/2588-200-0x0000000002740000-0x0000000002793000-memory.dmp

Filesize
332KB

Download
memory/2588-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2588-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2588-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2588-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2588-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2588-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2588-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads