modiloader | 1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 22:49

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General

Target

1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe
Size

90KB
MD5

62c61fb0fb35fa409fdca3e698496d50
SHA1

c24682e0102302475f2648314736239d1b0543fa
SHA256

1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2
SHA512

a562718aa97b4371bfa82682b75a47ca37d14b433ac2453dfa37748f85fe966df5bc4c5565f5b57e85cdcea959baf15aa24e777019efc03a1dffcb6ff8655ba4
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDw:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3u

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/2884-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2884-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2884-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2884-61-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe

Executes dropped EXE 3 IoCs

pid	Process
3708	csrsll.exe
688	csrsll.exe
2884	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-1-5-21-940901362-3608833189-1915618603-1000\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 2888 set thread context of 3140	2888	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	83
PID 3708 set thread context of 688	3708	csrsll.exe	97
PID 3708 set thread context of 2884	3708	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2888-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2888-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3140-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3140-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2888-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3140-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cd5-29.dat	upx
behavioral2/memory/3140-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3708-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3708-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2884-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2884-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3708-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2884-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2884-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2884-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3140-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/688-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2884-61-0x0000000000400000-0x0000000000414000-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	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.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	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2888	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe
3140	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe
3708	csrsll.exe
688	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 3140	2888	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	83
PID 2888 wrote to memory of 3140	2888	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	83
PID 2888 wrote to memory of 3140	2888	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	83
PID 2888 wrote to memory of 3140	2888	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	83
PID 2888 wrote to memory of 3140	2888	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	83
PID 2888 wrote to memory of 3140	2888	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	83
PID 2888 wrote to memory of 3140	2888	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	83
PID 2888 wrote to memory of 3140	2888	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	83
PID 3140 wrote to memory of 652	3140	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	84
PID 3140 wrote to memory of 652	3140	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	84
PID 3140 wrote to memory of 652	3140	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	84
PID 652 wrote to memory of 4380	652	cmd.exe	88
PID 652 wrote to memory of 4380	652	cmd.exe	88
PID 652 wrote to memory of 4380	652	cmd.exe	88
PID 3140 wrote to memory of 3708	3140	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	89
PID 3140 wrote to memory of 3708	3140	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	89
PID 3140 wrote to memory of 3708	3140	1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe	89
PID 3708 wrote to memory of 688	3708	csrsll.exe	97
PID 3708 wrote to memory of 688	3708	csrsll.exe	97
PID 3708 wrote to memory of 688	3708	csrsll.exe	97
PID 3708 wrote to memory of 688	3708	csrsll.exe	97
PID 3708 wrote to memory of 688	3708	csrsll.exe	97
PID 3708 wrote to memory of 688	3708	csrsll.exe	97
PID 3708 wrote to memory of 688	3708	csrsll.exe	97
PID 3708 wrote to memory of 688	3708	csrsll.exe	97
PID 3708 wrote to memory of 2884	3708	csrsll.exe	98
PID 3708 wrote to memory of 2884	3708	csrsll.exe	98
PID 3708 wrote to memory of 2884	3708	csrsll.exe	98
PID 3708 wrote to memory of 2884	3708	csrsll.exe	98
PID 3708 wrote to memory of 2884	3708	csrsll.exe	98
PID 3708 wrote to memory of 2884	3708	csrsll.exe	98
PID 3708 wrote to memory of 2884	3708	csrsll.exe	98
PID 3708 wrote to memory of 2884	3708	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe
"C:\Users\Admin\AppData\Local\Temp\1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Users\Admin\AppData\Local\Temp\1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe
  "C:\Users\Admin\AppData\Local\Temp\1aa678ddfc720861b0d6d9ad90135f4bbc481ba52b8086b462d7a900ed112bc2N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3140
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NQBGL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:652
  - - 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:4380
- - 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:3708
  - - 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:688
  - - 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:2884

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\NQBGL.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
4845f64c4991f94eda2c469958924271

SHA1
cffcc120c359db8210eb25289872121ab2a5ac8c

SHA256
9085f85a7532f384a5a88a51f5690ed2d61fed2a8460b1ae56580a7bcbe6a323

SHA512
3ccc4a506d65195e1632b80f677dc811c5bba0e4a5e072654bec65a6e7e8fa3eeaf62a19735fa5503d00ea2c927d613df724f7728fc49b8cc8acb49296a590b6

Download Submit
memory/688-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2884-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2884-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2884-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2884-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2884-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2884-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2888-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/2888-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/2888-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/2888-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2888-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2888-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3140-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3140-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3140-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3140-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3140-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3708-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3708-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3708-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads