modiloader | 4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29/11/2024, 18:09

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General

Target

4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe
Size

90KB
MD5

709b2402219e8f2056dba564323eb090
SHA1

867c81c27ab07e643ed9b4d0f172bb79b706bcfd
SHA256

4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0
SHA512

1e2d5784ee4ccc45980a261a28bc69d2367ba463fd9bc69748a7fbddd454fed6061fa4636b5e183e71608fcf2c4e1c3f4283b53dc0f4ccbe264a4cc07fc50590
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDs:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3q

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/4704-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4704-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4704-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4704-61-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe

Executes dropped EXE 3 IoCs

pid	Process
372	csrsll.exe
1412	csrsll.exe
4704	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-1-5-21-1045960512-3948844814-3059691613-1000\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 4624 set thread context of 964	4624	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	83
PID 372 set thread context of 1412	372	csrsll.exe	97
PID 372 set thread context of 4704	372	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4624-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4624-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/964-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/964-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/964-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4624-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b88-29.dat	upx
behavioral2/memory/964-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/372-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4704-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4704-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4704-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4704-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4704-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/372-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/372-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/964-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1412-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4704-61-0x0000000000400000-0x0000000000414000-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	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	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe
Token: SeDebugPrivilege	1412	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4624	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe
964	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe
372	csrsll.exe
1412	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4624 wrote to memory of 964	4624	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	83
PID 4624 wrote to memory of 964	4624	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	83
PID 4624 wrote to memory of 964	4624	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	83
PID 4624 wrote to memory of 964	4624	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	83
PID 4624 wrote to memory of 964	4624	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	83
PID 4624 wrote to memory of 964	4624	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	83
PID 4624 wrote to memory of 964	4624	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	83
PID 4624 wrote to memory of 964	4624	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	83
PID 964 wrote to memory of 2460	964	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	84
PID 964 wrote to memory of 2460	964	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	84
PID 964 wrote to memory of 2460	964	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	84
PID 2460 wrote to memory of 692	2460	cmd.exe	88
PID 2460 wrote to memory of 692	2460	cmd.exe	88
PID 2460 wrote to memory of 692	2460	cmd.exe	88
PID 964 wrote to memory of 372	964	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	89
PID 964 wrote to memory of 372	964	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	89
PID 964 wrote to memory of 372	964	4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe	89
PID 372 wrote to memory of 1412	372	csrsll.exe	97
PID 372 wrote to memory of 1412	372	csrsll.exe	97
PID 372 wrote to memory of 1412	372	csrsll.exe	97
PID 372 wrote to memory of 1412	372	csrsll.exe	97
PID 372 wrote to memory of 1412	372	csrsll.exe	97
PID 372 wrote to memory of 1412	372	csrsll.exe	97
PID 372 wrote to memory of 1412	372	csrsll.exe	97
PID 372 wrote to memory of 1412	372	csrsll.exe	97
PID 372 wrote to memory of 4704	372	csrsll.exe	98
PID 372 wrote to memory of 4704	372	csrsll.exe	98
PID 372 wrote to memory of 4704	372	csrsll.exe	98
PID 372 wrote to memory of 4704	372	csrsll.exe	98
PID 372 wrote to memory of 4704	372	csrsll.exe	98
PID 372 wrote to memory of 4704	372	csrsll.exe	98
PID 372 wrote to memory of 4704	372	csrsll.exe	98
PID 372 wrote to memory of 4704	372	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe
"C:\Users\Admin\AppData\Local\Temp\4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Users\Admin\AppData\Local\Temp\4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe
  "C:\Users\Admin\AppData\Local\Temp\4422cde1f6792820af98ffc41219981357bdb12b9c1cfd976d4ba42d386a62b0N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:964
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KPACF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2460
  - - 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:692
- - 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:372
  - - 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:1412
  - - 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:4704

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\KPACF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
8179c534961ee672e38a59e750e33d4f

SHA1
fb0d84ef8b52bf6ad7359fcc5b9563aeeecab20d

SHA256
aa1fdbfd764dbd3499eda8170fffbd3b2147434111fc56317ef1f2e54edee8b9

SHA512
1ae052a3b73004d7b1464b190b6e669b5c9abd45929afc69d0f1a7989a47ec8c03e9d1546e5f807c622c07c1b3dadfd8c66cd7b6a2e969b4d1a9419a2d526740

Download Submit
memory/372-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/372-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/372-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/964-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/964-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/964-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/964-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/964-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1412-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4624-5-0x0000000002A20000-0x0000000002A22000-memory.dmp

Filesize
8KB

Download
memory/4624-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4624-6-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/4624-3-0x0000000002A00000-0x0000000002A02000-memory.dmp

Filesize
8KB

Download
memory/4624-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4624-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4704-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4704-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4704-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4704-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4704-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4704-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads