modiloader | b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8

Analysis

max time kernel
60s
max time network
21s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 19:34

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General

Target

b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
Size

90KB
MD5

ade059a90fa4854962c0c45d24acb915
SHA1

7f3a1d1b7959a37de50963c79ec5eabe7e99e884
SHA256

b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8
SHA512

b17f1a15bf3d0a058ad24dc6af633b9b885acf82965a536c52a2c9453269762d781a7a6b6bc5f750bfb9d8a90d9c81b6f33d4b327d08ec053bb3739eff94cd60
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD7:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Z

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/2020-268-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1708	csrsll.exe
1864	csrsll.exe
2020	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2688	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
2688	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
2688	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
2688	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
2688	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.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 2132 set thread context of 2688	2132	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	31
PID 1708 set thread context of 1864	1708	csrsll.exe	36
PID 1708 set thread context of 2020	1708	csrsll.exe	37

UPX packed file 27 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2132-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2132-31-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2132-94-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2132-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2132-110-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2688-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2688-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2132-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2688-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2688-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2688-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2132-84-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2132-83-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2132-80-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2132-77-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2688-111-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2688-113-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2688-112-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0004000000013d08-138.dat	upx
behavioral1/memory/2688-159-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1708-217-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1708-260-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2020-258-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1864-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2688-266-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1864-267-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2020-268-0x0000000000400000-0x0000000000414000-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	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe
Token: SeDebugPrivilege	1864	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2132	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
2688	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
1708	csrsll.exe
1864	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 2688	2132	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	31
PID 2132 wrote to memory of 2688	2132	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	31
PID 2132 wrote to memory of 2688	2132	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	31
PID 2132 wrote to memory of 2688	2132	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	31
PID 2132 wrote to memory of 2688	2132	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	31
PID 2132 wrote to memory of 2688	2132	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	31
PID 2132 wrote to memory of 2688	2132	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	31
PID 2132 wrote to memory of 2688	2132	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	31
PID 2688 wrote to memory of 1352	2688	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	32
PID 2688 wrote to memory of 1352	2688	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	32
PID 2688 wrote to memory of 1352	2688	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	32
PID 2688 wrote to memory of 1352	2688	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	32
PID 1352 wrote to memory of 1684	1352	cmd.exe	34
PID 1352 wrote to memory of 1684	1352	cmd.exe	34
PID 1352 wrote to memory of 1684	1352	cmd.exe	34
PID 1352 wrote to memory of 1684	1352	cmd.exe	34
PID 2688 wrote to memory of 1708	2688	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	35
PID 2688 wrote to memory of 1708	2688	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	35
PID 2688 wrote to memory of 1708	2688	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	35
PID 2688 wrote to memory of 1708	2688	b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe	35
PID 1708 wrote to memory of 1864	1708	csrsll.exe	36
PID 1708 wrote to memory of 1864	1708	csrsll.exe	36
PID 1708 wrote to memory of 1864	1708	csrsll.exe	36
PID 1708 wrote to memory of 1864	1708	csrsll.exe	36
PID 1708 wrote to memory of 1864	1708	csrsll.exe	36
PID 1708 wrote to memory of 1864	1708	csrsll.exe	36
PID 1708 wrote to memory of 1864	1708	csrsll.exe	36
PID 1708 wrote to memory of 1864	1708	csrsll.exe	36
PID 1708 wrote to memory of 2020	1708	csrsll.exe	37
PID 1708 wrote to memory of 2020	1708	csrsll.exe	37
PID 1708 wrote to memory of 2020	1708	csrsll.exe	37
PID 1708 wrote to memory of 2020	1708	csrsll.exe	37
PID 1708 wrote to memory of 2020	1708	csrsll.exe	37
PID 1708 wrote to memory of 2020	1708	csrsll.exe	37
PID 1708 wrote to memory of 2020	1708	csrsll.exe	37
PID 1708 wrote to memory of 2020	1708	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
"C:\Users\Admin\AppData\Local\Temp\b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Users\Admin\AppData\Local\Temp\b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe
  "C:\Users\Admin\AppData\Local\Temp\b8c6d28a450db0189a14704e82e72a0608f5d5bd751cc1d911f77d447809bde8.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2688
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\NOLTF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1352
  - - 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:1684
- - 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:1708
  - - 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:1864
  - - 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:2020

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

Replay Monitor

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
bfdc996dc4e8b5a1995b8acce25af23f

SHA1
388e78931214d9fb8654d111f02a37577292ddc4

SHA256
89fb45916283c14d6e7c58970e1a927a82d091b08aa08d9d002c0107095eef29

SHA512
fb054136ae6bade6964dc3146eb5d72ea5733e6812a896df22e136402ecd07c3602c1227deeccd8c890861a3da4da9a05c8d9863ada1663099202b1d2ace9f73

Download Submit
memory/1708-162-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1708-183-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1708-217-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1708-172-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1708-260-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1864-267-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1864-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2020-258-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2020-268-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2132-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2132-83-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2132-106-0x0000000001DA0000-0x0000000001DF3000-memory.dmp

Filesize
332KB

Download
memory/2132-110-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2132-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2132-94-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2132-28-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2132-31-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2132-84-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2132-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2132-81-0x0000000000390000-0x0000000000392000-memory.dmp

Filesize
8KB

Download
memory/2132-80-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2132-77-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2132-71-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/2132-61-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2132-41-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2132-15-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2132-16-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2132-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2132-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2688-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-153-0x0000000003310000-0x0000000003363000-memory.dmp

Filesize
332KB

Download
memory/2688-155-0x0000000003310000-0x0000000003363000-memory.dmp

Filesize
332KB

Download
memory/2688-154-0x0000000003310000-0x0000000003363000-memory.dmp

Filesize
332KB

Download
memory/2688-152-0x0000000003310000-0x0000000003363000-memory.dmp

Filesize
332KB

Download
memory/2688-159-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-112-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-113-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-111-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-252-0x0000000003310000-0x0000000003363000-memory.dmp

Filesize
332KB

Download
memory/2688-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-101-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-256-0x0000000003310000-0x0000000003363000-memory.dmp

Filesize
332KB

Download
memory/2688-255-0x0000000003310000-0x0000000003363000-memory.dmp

Filesize
332KB

Download
memory/2688-251-0x0000000003310000-0x0000000003363000-memory.dmp

Filesize
332KB

Download
memory/2688-266-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads