modiloader | aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fef

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2024 01:52

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General

Target

aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe
Size

90KB
MD5

74b4861c30460d6d9b4e2e939ae1be20
SHA1

73cc24e54b4854336efe6c080fcb3c596ec7a040
SHA256

aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fef
SHA512

7c9233fd42a5aefa98a6ecac56ae3afd25eb72203e7783a97903571ecbad96a8f687d91ae841ac39efd75c84ab41a917261e7c2289144a3f0fffdc3994ec99f3
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD6:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3A

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 4 IoCs

resource	yara_rule
behavioral2/memory/3196-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3196-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3196-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3196-62-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe

Executes dropped EXE 3 IoCs

pid	Process
4560	csrsll.exe
4940	csrsll.exe
3196	csrsll.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-1-5-21-2878641211-696417878-3864914810-1000\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 1168 set thread context of 3204	1168	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	90
PID 4560 set thread context of 4940	4560	csrsll.exe	102
PID 4560 set thread context of 3196	4560	csrsll.exe	103

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1168-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1168-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3204-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3204-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1168-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3204-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c87-29.dat	upx
behavioral2/memory/3204-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4560-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4560-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3196-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3196-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3196-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3196-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3196-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4560-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3204-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4940-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3196-62-0x0000000000400000-0x0000000000414000-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	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe
Token: SeDebugPrivilege	4940	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1168	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe
3204	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe
4560	csrsll.exe
4940	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1168 wrote to memory of 3204	1168	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	90
PID 1168 wrote to memory of 3204	1168	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	90
PID 1168 wrote to memory of 3204	1168	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	90
PID 1168 wrote to memory of 3204	1168	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	90
PID 1168 wrote to memory of 3204	1168	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	90
PID 1168 wrote to memory of 3204	1168	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	90
PID 1168 wrote to memory of 3204	1168	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	90
PID 1168 wrote to memory of 3204	1168	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	90
PID 3204 wrote to memory of 1860	3204	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	91
PID 3204 wrote to memory of 1860	3204	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	91
PID 3204 wrote to memory of 1860	3204	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	91
PID 1860 wrote to memory of 3468	1860	cmd.exe	96
PID 1860 wrote to memory of 3468	1860	cmd.exe	96
PID 1860 wrote to memory of 3468	1860	cmd.exe	96
PID 3204 wrote to memory of 4560	3204	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	97
PID 3204 wrote to memory of 4560	3204	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	97
PID 3204 wrote to memory of 4560	3204	aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe	97
PID 4560 wrote to memory of 4940	4560	csrsll.exe	102
PID 4560 wrote to memory of 4940	4560	csrsll.exe	102
PID 4560 wrote to memory of 4940	4560	csrsll.exe	102
PID 4560 wrote to memory of 4940	4560	csrsll.exe	102
PID 4560 wrote to memory of 4940	4560	csrsll.exe	102
PID 4560 wrote to memory of 4940	4560	csrsll.exe	102
PID 4560 wrote to memory of 4940	4560	csrsll.exe	102
PID 4560 wrote to memory of 4940	4560	csrsll.exe	102
PID 4560 wrote to memory of 3196	4560	csrsll.exe	103
PID 4560 wrote to memory of 3196	4560	csrsll.exe	103
PID 4560 wrote to memory of 3196	4560	csrsll.exe	103
PID 4560 wrote to memory of 3196	4560	csrsll.exe	103
PID 4560 wrote to memory of 3196	4560	csrsll.exe	103
PID 4560 wrote to memory of 3196	4560	csrsll.exe	103
PID 4560 wrote to memory of 3196	4560	csrsll.exe	103
PID 4560 wrote to memory of 3196	4560	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe
"C:\Users\Admin\AppData\Local\Temp\aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1168
- C:\Users\Admin\AppData\Local\Temp\aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe
  "C:\Users\Admin\AppData\Local\Temp\aebdd0b83c5c3af09fb9b21c290f43ff5565ad9606da56939fc20c681a6e1fefN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3204
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DRQCL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1860
  - - 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:3468
- - 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:4560
  - - 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:4940
  - - 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:3196

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

Query Registry

T1012

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\DRQCL.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
9c4602a29d471da8cd7160ce4dd24497

SHA1
e428651446bcb12b0c220c9351dec5d464e1fa8b

SHA256
66f7145a5c6c0dc095c25d7eed3745c064ab933ef4ef9e83eedd9198ce2c9f44

SHA512
3b50d1eb918a44710c098e51529d3caa2107a3e09455b8f808e95a74565a7df75762d0eb3cfa8bb54ff065dda7e27c5b0011ec6f120079eba2cf24f4b2516cde

Download Submit
memory/1168-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1168-6-0x0000000002440000-0x0000000002442000-memory.dmp

Filesize
8KB

Download
memory/1168-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1168-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1168-4-0x0000000002420000-0x0000000002422000-memory.dmp

Filesize
8KB

Download
memory/1168-3-0x0000000002410000-0x0000000002412000-memory.dmp

Filesize
8KB

Download
memory/3196-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3196-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3196-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3196-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3196-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3196-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3204-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3204-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3204-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3204-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3204-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3204-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4560-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4560-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4560-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4940-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads