modiloader | f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2024, 04:44

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General

Target

f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe
Size

300KB
MD5

83ef67bdbe16f0cb8691b5311fdb9804
SHA1

9f75527d3c8ac7fabbe282fe37e817b54877e3ac
SHA256

f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b
SHA512

897f2618e6cb7b62ce21473fd6f467af01e87a5fa04fa87389397a1b8d1bf47b96b92be74cdbea7e2edcefcbbce594a9a558a31846f723f99a753f1bcfe75b47
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38Gl:UsxD5cwohO+O1sVG0/pZ6iPC8X

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/2768-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2768-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2768-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2768-57-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe

Executes dropped EXE 3 IoCs

pid	Process
4616	csrsll.exe
3540	csrsll.exe
2768	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-1-5-21-2437139445-1151884604-3026847218-1000\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 856 set thread context of 2200	856	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	83
PID 4616 set thread context of 3540	4616	csrsll.exe	96
PID 4616 set thread context of 2768	4616	csrsll.exe	97

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2200-6-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2200-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2200-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2200-36-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2768-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2768-42-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2768-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2768-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2768-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2200-54-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3540-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2768-57-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe
Token: SeDebugPrivilege	3540	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
856	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe
2200	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe
4616	csrsll.exe
3540	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 856 wrote to memory of 2200	856	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	83
PID 856 wrote to memory of 2200	856	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	83
PID 856 wrote to memory of 2200	856	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	83
PID 856 wrote to memory of 2200	856	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	83
PID 856 wrote to memory of 2200	856	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	83
PID 856 wrote to memory of 2200	856	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	83
PID 856 wrote to memory of 2200	856	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	83
PID 856 wrote to memory of 2200	856	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	83
PID 2200 wrote to memory of 1116	2200	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	84
PID 2200 wrote to memory of 1116	2200	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	84
PID 2200 wrote to memory of 1116	2200	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	84
PID 1116 wrote to memory of 620	1116	cmd.exe	88
PID 1116 wrote to memory of 620	1116	cmd.exe	88
PID 1116 wrote to memory of 620	1116	cmd.exe	88
PID 2200 wrote to memory of 4616	2200	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	89
PID 2200 wrote to memory of 4616	2200	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	89
PID 2200 wrote to memory of 4616	2200	f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe	89
PID 4616 wrote to memory of 3540	4616	csrsll.exe	96
PID 4616 wrote to memory of 3540	4616	csrsll.exe	96
PID 4616 wrote to memory of 3540	4616	csrsll.exe	96
PID 4616 wrote to memory of 3540	4616	csrsll.exe	96
PID 4616 wrote to memory of 3540	4616	csrsll.exe	96
PID 4616 wrote to memory of 3540	4616	csrsll.exe	96
PID 4616 wrote to memory of 3540	4616	csrsll.exe	96
PID 4616 wrote to memory of 3540	4616	csrsll.exe	96
PID 4616 wrote to memory of 2768	4616	csrsll.exe	97
PID 4616 wrote to memory of 2768	4616	csrsll.exe	97
PID 4616 wrote to memory of 2768	4616	csrsll.exe	97
PID 4616 wrote to memory of 2768	4616	csrsll.exe	97
PID 4616 wrote to memory of 2768	4616	csrsll.exe	97
PID 4616 wrote to memory of 2768	4616	csrsll.exe	97
PID 4616 wrote to memory of 2768	4616	csrsll.exe	97
PID 4616 wrote to memory of 2768	4616	csrsll.exe	97

C:\Users\Admin\AppData\Local\Temp\f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe
"C:\Users\Admin\AppData\Local\Temp\f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:856
- C:\Users\Admin\AppData\Local\Temp\f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe
  "C:\Users\Admin\AppData\Local\Temp\f642c212d3bbd63b26a845825179930ec9d210637f19a90f4c96a24a9141c10b.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2200
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\INAMU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1116
  - - 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:620
- - 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:4616
  - - 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:3540
  - - 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:2768

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\INAMU.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
5873f5a340185c9d0178f8869cd701e0

SHA1
01ce9b8f908f0cfec6c44c7e2574de00aeff7d04

SHA256
079de590caa0864ff6df00de5cc3b39f39b7152a29ed2d9e52e833e28bb2dd7d

SHA512
c7f1d812e4923013287deb8beb936686169c28b942cbf97da4b077b8a44b87590230903e99260fef30e91d23405db829714d205d9fe6155746abdc6048663b7b

Download Submit
memory/856-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/856-3-0x00000000021A0000-0x00000000021A2000-memory.dmp

Filesize
8KB

Download
memory/856-4-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download
memory/856-5-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/2200-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2200-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2200-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2200-36-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2200-54-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2768-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2768-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2768-42-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2768-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2768-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2768-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3540-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4616-38-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4616-53-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4616-37-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads