modiloader | af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbc

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
03-12-2024 20:34

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General

Target

af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe
Size

90KB
MD5

659e0ad6f6139b4ff8a96d56e791db00
SHA1

ad4e14a360d53aba72bf8c3f74ea582ead525599
SHA256

af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbc
SHA512

c823288ad0c068174c4fe68ef91c3ecc6d9bccab21c98e08948797139a638d49e21f13cfdfb9ec70cafbcacbd474075e31701794ac86a90353f36253ff6b5885
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDk:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE32

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/1948-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1948-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1948-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1948-62-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe

Executes dropped EXE 3 IoCs

pid	Process
3872	csrsll.exe
468	csrsll.exe
1948	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 4916 set thread context of 3316	4916	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	83
PID 3872 set thread context of 468	3872	csrsll.exe	95
PID 3872 set thread context of 1948	3872	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4916-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4916-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3316-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3316-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4916-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3316-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b66-29.dat	upx
behavioral2/memory/3316-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3872-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3872-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1948-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1948-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1948-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1948-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3872-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1948-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3316-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/468-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1948-62-0x0000000000400000-0x0000000000414000-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	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe
Token: SeDebugPrivilege	468	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4916	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe
3316	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe
3872	csrsll.exe
468	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4916 wrote to memory of 3316	4916	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	83
PID 4916 wrote to memory of 3316	4916	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	83
PID 4916 wrote to memory of 3316	4916	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	83
PID 4916 wrote to memory of 3316	4916	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	83
PID 4916 wrote to memory of 3316	4916	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	83
PID 4916 wrote to memory of 3316	4916	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	83
PID 4916 wrote to memory of 3316	4916	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	83
PID 4916 wrote to memory of 3316	4916	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	83
PID 3316 wrote to memory of 2084	3316	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	84
PID 3316 wrote to memory of 2084	3316	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	84
PID 3316 wrote to memory of 2084	3316	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	84
PID 2084 wrote to memory of 4900	2084	cmd.exe	88
PID 2084 wrote to memory of 4900	2084	cmd.exe	88
PID 2084 wrote to memory of 4900	2084	cmd.exe	88
PID 3316 wrote to memory of 3872	3316	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	89
PID 3316 wrote to memory of 3872	3316	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	89
PID 3316 wrote to memory of 3872	3316	af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe	89
PID 3872 wrote to memory of 468	3872	csrsll.exe	95
PID 3872 wrote to memory of 468	3872	csrsll.exe	95
PID 3872 wrote to memory of 468	3872	csrsll.exe	95
PID 3872 wrote to memory of 468	3872	csrsll.exe	95
PID 3872 wrote to memory of 468	3872	csrsll.exe	95
PID 3872 wrote to memory of 468	3872	csrsll.exe	95
PID 3872 wrote to memory of 468	3872	csrsll.exe	95
PID 3872 wrote to memory of 468	3872	csrsll.exe	95
PID 3872 wrote to memory of 1948	3872	csrsll.exe	96
PID 3872 wrote to memory of 1948	3872	csrsll.exe	96
PID 3872 wrote to memory of 1948	3872	csrsll.exe	96
PID 3872 wrote to memory of 1948	3872	csrsll.exe	96
PID 3872 wrote to memory of 1948	3872	csrsll.exe	96
PID 3872 wrote to memory of 1948	3872	csrsll.exe	96
PID 3872 wrote to memory of 1948	3872	csrsll.exe	96
PID 3872 wrote to memory of 1948	3872	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe
"C:\Users\Admin\AppData\Local\Temp\af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4916
- C:\Users\Admin\AppData\Local\Temp\af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe
  "C:\Users\Admin\AppData\Local\Temp\af1151066fbbb1088ca43672165d09782fdc1d3d9edaa57d10b5f5bfdc098bbcN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3316
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\GCYWB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2084
  - - 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:4900
- - 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:3872
  - - 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:468
  - - 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:1948

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\GCYWB.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
8db04cdf48b0a3d98679f0cd78149370

SHA1
1b09416a62b6081dcab563e374485855baf6585a

SHA256
4cce8bafdf88f58689f06bb0bc52bdd4a47bff5683860bdd7139f71b20676711

SHA512
7ea4c81e68ffb80efa538004210a37d61c9f8c5d6d835e9c7e770c3fef82fc576a69b0a710d2cf3f23e254373848b52f27d061f958d96538baf851b4ed15a49f

Download Submit
memory/468-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1948-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1948-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1948-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1948-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1948-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1948-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3316-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3316-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3316-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3316-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3316-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3316-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3872-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3872-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3872-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4916-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4916-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4916-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4916-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4916-4-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/4916-3-0x00000000022E0000-0x00000000022E2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads