modiloader | c97ecd0fecefe1ac926bfb8ed5f82a3eb4a87cd51d2edcaa26eeb954756465e0

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/09/2024, 04:16

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General

Target

d0c727478021817a0bd94a993c927440N.exe
Size

90KB
MD5

d0c727478021817a0bd94a993c927440
SHA1

bcd14a9d096b1b23661f99b3875c4d9cb2327926
SHA256

c97ecd0fecefe1ac926bfb8ed5f82a3eb4a87cd51d2edcaa26eeb954756465e0
SHA512

964497c23377f78d7b1019e340161df2856239b6f18833b37d95faa8c89015b4bd47572f99d6963e3f47570e1c7dd98553f47a7a3d5e7c84046f70e3d64e5df9
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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/3980-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3980-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3980-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3980-63-0x0000000000400000-0x0000000000414000-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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	d0c727478021817a0bd94a993c927440N.exe

Executes dropped EXE 3 IoCs

pid	Process
2148	csrsll.exe
4208	csrsll.exe
3980	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3492-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3492-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1104-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1104-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3492-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1104-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000c000000023428-29.dat	upx
behavioral2/memory/2148-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1104-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2148-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2148-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3980-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3980-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3980-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3980-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2148-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3980-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1104-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4208-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3980-63-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-4182098368-2521458979-3782681353-1000\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 3492 set thread context of 1104	3492	d0c727478021817a0bd94a993c927440N.exe	91
PID 2148 set thread context of 4208	2148	csrsll.exe	99
PID 2148 set thread context of 3980	2148	csrsll.exe	100

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	d0c727478021817a0bd94a993c927440N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d0c727478021817a0bd94a993c927440N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe
Token: SeDebugPrivilege	4208	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3492	d0c727478021817a0bd94a993c927440N.exe
1104	d0c727478021817a0bd94a993c927440N.exe
2148	csrsll.exe
4208	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3492 wrote to memory of 1104	3492	d0c727478021817a0bd94a993c927440N.exe	91
PID 3492 wrote to memory of 1104	3492	d0c727478021817a0bd94a993c927440N.exe	91
PID 3492 wrote to memory of 1104	3492	d0c727478021817a0bd94a993c927440N.exe	91
PID 3492 wrote to memory of 1104	3492	d0c727478021817a0bd94a993c927440N.exe	91
PID 3492 wrote to memory of 1104	3492	d0c727478021817a0bd94a993c927440N.exe	91
PID 3492 wrote to memory of 1104	3492	d0c727478021817a0bd94a993c927440N.exe	91
PID 3492 wrote to memory of 1104	3492	d0c727478021817a0bd94a993c927440N.exe	91
PID 3492 wrote to memory of 1104	3492	d0c727478021817a0bd94a993c927440N.exe	91
PID 1104 wrote to memory of 388	1104	d0c727478021817a0bd94a993c927440N.exe	92
PID 1104 wrote to memory of 388	1104	d0c727478021817a0bd94a993c927440N.exe	92
PID 1104 wrote to memory of 388	1104	d0c727478021817a0bd94a993c927440N.exe	92
PID 388 wrote to memory of 1268	388	cmd.exe	95
PID 388 wrote to memory of 1268	388	cmd.exe	95
PID 388 wrote to memory of 1268	388	cmd.exe	95
PID 1104 wrote to memory of 2148	1104	d0c727478021817a0bd94a993c927440N.exe	96
PID 1104 wrote to memory of 2148	1104	d0c727478021817a0bd94a993c927440N.exe	96
PID 1104 wrote to memory of 2148	1104	d0c727478021817a0bd94a993c927440N.exe	96
PID 2148 wrote to memory of 4208	2148	csrsll.exe	99
PID 2148 wrote to memory of 4208	2148	csrsll.exe	99
PID 2148 wrote to memory of 4208	2148	csrsll.exe	99
PID 2148 wrote to memory of 4208	2148	csrsll.exe	99
PID 2148 wrote to memory of 4208	2148	csrsll.exe	99
PID 2148 wrote to memory of 4208	2148	csrsll.exe	99
PID 2148 wrote to memory of 4208	2148	csrsll.exe	99
PID 2148 wrote to memory of 4208	2148	csrsll.exe	99
PID 2148 wrote to memory of 3980	2148	csrsll.exe	100
PID 2148 wrote to memory of 3980	2148	csrsll.exe	100
PID 2148 wrote to memory of 3980	2148	csrsll.exe	100
PID 2148 wrote to memory of 3980	2148	csrsll.exe	100
PID 2148 wrote to memory of 3980	2148	csrsll.exe	100
PID 2148 wrote to memory of 3980	2148	csrsll.exe	100
PID 2148 wrote to memory of 3980	2148	csrsll.exe	100
PID 2148 wrote to memory of 3980	2148	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\d0c727478021817a0bd94a993c927440N.exe
"C:\Users\Admin\AppData\Local\Temp\d0c727478021817a0bd94a993c927440N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3492
- C:\Users\Admin\AppData\Local\Temp\d0c727478021817a0bd94a993c927440N.exe
  "C:\Users\Admin\AppData\Local\Temp\d0c727478021817a0bd94a993c927440N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1104
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SPOSF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:388
  - - 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:1268
- - 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:2148
  - - 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:4208
  - - 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:3980

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\SPOSF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
69652be80b88a7b356c414a46bef9ba0

SHA1
a4e7c0dc7ef3de9888b6441d1bd156754ba5b56b

SHA256
60493a2b6040cc8d26421180b444b317110cfcb79266fc0459b17c317debc3f1

SHA512
71c72027bbcb502d87e26abffb3d4498c73d0ce4eb468e757088c7dfb4164938366f55542090e6f8f9d8c290eb52fdf28360f1b35db56b4289e9205c66bf8b6f

Download Submit
memory/1104-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1104-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1104-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1104-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1104-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1104-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2148-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2148-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2148-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2148-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3492-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/3492-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3492-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/3492-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3492-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3492-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/3980-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3980-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3980-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3980-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3980-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3980-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4208-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads