modiloader | d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e

Analysis

max time kernel
149s
max time network
151s
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 07:41

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General

Target

d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe
Size

90KB
MD5

9b7df6a6d9f9377ef1d2f5db412717dc
SHA1

9b94aecdffa47c719c05d61659ba8b6319d1e98a
SHA256

d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e
SHA512

83c17bb3d20c4cae1e9e6da229335a34abd025d39acaf06f380939d24b7b7b6de7edadca4a0dd7bf2c54324929876bdbabbdedae911297648d6fd01b49b2ce4c
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDJ:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3v

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/1340-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1340-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1340-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1340-61-0x0000000000400000-0x0000000000414000-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	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe

Executes dropped EXE 3 IoCs

pid	Process
3368	csrsll.exe
2012	csrsll.exe
1340	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 1036 set thread context of 536	1036	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	89
PID 3368 set thread context of 2012	3368	csrsll.exe	101
PID 3368 set thread context of 1340	3368	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1036-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1036-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/536-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/536-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/536-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1036-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b7c-29.dat	upx
behavioral2/memory/536-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3368-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3368-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1340-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1340-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1340-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1340-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3368-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1340-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/536-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2012-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1340-61-0x0000000000400000-0x0000000000414000-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	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.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	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe
Token: SeDebugPrivilege	2012	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1036	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe
536	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe
3368	csrsll.exe
2012	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1036 wrote to memory of 536	1036	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	89
PID 1036 wrote to memory of 536	1036	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	89
PID 1036 wrote to memory of 536	1036	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	89
PID 1036 wrote to memory of 536	1036	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	89
PID 1036 wrote to memory of 536	1036	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	89
PID 1036 wrote to memory of 536	1036	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	89
PID 1036 wrote to memory of 536	1036	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	89
PID 1036 wrote to memory of 536	1036	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	89
PID 536 wrote to memory of 616	536	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	90
PID 536 wrote to memory of 616	536	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	90
PID 536 wrote to memory of 616	536	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	90
PID 616 wrote to memory of 4648	616	cmd.exe	94
PID 616 wrote to memory of 4648	616	cmd.exe	94
PID 616 wrote to memory of 4648	616	cmd.exe	94
PID 536 wrote to memory of 3368	536	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	95
PID 536 wrote to memory of 3368	536	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	95
PID 536 wrote to memory of 3368	536	d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe	95
PID 3368 wrote to memory of 2012	3368	csrsll.exe	101
PID 3368 wrote to memory of 2012	3368	csrsll.exe	101
PID 3368 wrote to memory of 2012	3368	csrsll.exe	101
PID 3368 wrote to memory of 2012	3368	csrsll.exe	101
PID 3368 wrote to memory of 2012	3368	csrsll.exe	101
PID 3368 wrote to memory of 2012	3368	csrsll.exe	101
PID 3368 wrote to memory of 2012	3368	csrsll.exe	101
PID 3368 wrote to memory of 2012	3368	csrsll.exe	101
PID 3368 wrote to memory of 1340	3368	csrsll.exe	102
PID 3368 wrote to memory of 1340	3368	csrsll.exe	102
PID 3368 wrote to memory of 1340	3368	csrsll.exe	102
PID 3368 wrote to memory of 1340	3368	csrsll.exe	102
PID 3368 wrote to memory of 1340	3368	csrsll.exe	102
PID 3368 wrote to memory of 1340	3368	csrsll.exe	102
PID 3368 wrote to memory of 1340	3368	csrsll.exe	102
PID 3368 wrote to memory of 1340	3368	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe
"C:\Users\Admin\AppData\Local\Temp\d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1036
- C:\Users\Admin\AppData\Local\Temp\d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe
  "C:\Users\Admin\AppData\Local\Temp\d673cbc22cba090e2cb221b9a6c37df407483aacfd2035814c04e10eb9c1f91e.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:536
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PGYQM.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:616
  - - 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:4648
- - 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:3368
  - - 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:2012
  - - 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:1340

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\PGYQM.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
18d7e60272469994fd3af34e175931da

SHA1
cee30208c7da5ebc694bc7e37d3804356c1e99f4

SHA256
1f87fa2fce62e0bb917f7efb0db4922f967e9478f1590d14ba7d8e545c34f3ce

SHA512
1f936f3b26013f504f2847fae238b5afec8b91c0f6eb357279fa0e2d68e7f7bb06d66ec7c6bbafeb30c7ab395f8c908b0b9ec85f5daece3ed19f5f80c959eeaf

Download Submit
memory/536-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/536-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/536-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/536-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/536-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1036-6-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/1036-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1036-4-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/1036-3-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download
memory/1036-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1036-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1340-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1340-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1340-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1340-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1340-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1340-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2012-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3368-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3368-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3368-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads