modiloader | 4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6d

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
22-12-2024 14:19

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General

Target

4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe
Size

90KB
MD5

9d0e9e90e87991276bb94f82d718c940
SHA1

383e421d2f42a689797c6b528e6d61e2137baa87
SHA256

4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6d
SHA512

cb8a922513164c6f85fc05a520488202b25e3741b1484f422ec83e7671367e1a210b3a0f161d9e6fb4cc942b2217baa18730077eb1ed205a6d3ef0bc52bc4d2b
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDM: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/644-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/644-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/644-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/644-64-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe

Executes dropped EXE 3 IoCs

pid	Process
3136	csrsll.exe
1352	csrsll.exe
644	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-1-5-21-4089630652-1596403869-279772308-1000\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 2100 set thread context of 1468	2100	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	84
PID 3136 set thread context of 1352	3136	csrsll.exe	95
PID 3136 set thread context of 644	3136	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2100-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2100-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1468-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1468-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1468-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2100-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c7a-30.dat	upx
behavioral2/memory/1468-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3136-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3136-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/644-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3136-52-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/644-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/644-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/644-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/644-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1468-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1352-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/644-64-0x0000000000400000-0x0000000000414000-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	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	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe
Token: SeDebugPrivilege	1352	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2100	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe
1468	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe
3136	csrsll.exe
1352	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 1468	2100	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	84
PID 2100 wrote to memory of 1468	2100	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	84
PID 2100 wrote to memory of 1468	2100	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	84
PID 2100 wrote to memory of 1468	2100	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	84
PID 2100 wrote to memory of 1468	2100	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	84
PID 2100 wrote to memory of 1468	2100	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	84
PID 2100 wrote to memory of 1468	2100	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	84
PID 2100 wrote to memory of 1468	2100	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	84
PID 1468 wrote to memory of 2080	1468	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	87
PID 1468 wrote to memory of 2080	1468	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	87
PID 1468 wrote to memory of 2080	1468	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	87
PID 2080 wrote to memory of 4280	2080	cmd.exe	90
PID 2080 wrote to memory of 4280	2080	cmd.exe	90
PID 2080 wrote to memory of 4280	2080	cmd.exe	90
PID 1468 wrote to memory of 3136	1468	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	91
PID 1468 wrote to memory of 3136	1468	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	91
PID 1468 wrote to memory of 3136	1468	4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe	91
PID 3136 wrote to memory of 1352	3136	csrsll.exe	95
PID 3136 wrote to memory of 1352	3136	csrsll.exe	95
PID 3136 wrote to memory of 1352	3136	csrsll.exe	95
PID 3136 wrote to memory of 1352	3136	csrsll.exe	95
PID 3136 wrote to memory of 1352	3136	csrsll.exe	95
PID 3136 wrote to memory of 1352	3136	csrsll.exe	95
PID 3136 wrote to memory of 1352	3136	csrsll.exe	95
PID 3136 wrote to memory of 1352	3136	csrsll.exe	95
PID 3136 wrote to memory of 644	3136	csrsll.exe	96
PID 3136 wrote to memory of 644	3136	csrsll.exe	96
PID 3136 wrote to memory of 644	3136	csrsll.exe	96
PID 3136 wrote to memory of 644	3136	csrsll.exe	96
PID 3136 wrote to memory of 644	3136	csrsll.exe	96
PID 3136 wrote to memory of 644	3136	csrsll.exe	96
PID 3136 wrote to memory of 644	3136	csrsll.exe	96
PID 3136 wrote to memory of 644	3136	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe
"C:\Users\Admin\AppData\Local\Temp\4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\AppData\Local\Temp\4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe
  "C:\Users\Admin\AppData\Local\Temp\4d26de323be15ac2abf143c3f144f09f9ec89334b8c255864b26bed43cbbce6dN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1468
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WKWIG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2080
  - - 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:4280
- - 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:3136
  - - 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:1352
  - - 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:644

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\WKWIG.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
ae664657577d8dbbb99a49a9e4b05316

SHA1
5aa44fecf3b7a9105723bd36c65fec4530bda5bf

SHA256
867fc0ede433e78e724f8307c31783473c69581347fca4c699c8c17ff72a11ca

SHA512
56a9ca190f96575d1a896331a939dad787dddb787497405cd927fcbdd3542ce7ef7316f2d485504696eddd64652cb4e7ba46651a7a4c81c9bd740ae911b95c64

Download Submit
memory/644-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/644-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/644-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/644-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/644-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/644-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1352-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1468-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1468-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1468-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1468-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1468-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1468-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2100-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-9-0x0000000002450000-0x0000000002452000-memory.dmp

Filesize
8KB

Download
memory/2100-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-4-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/2100-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/3136-52-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3136-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3136-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads