modiloader | 11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 04:44

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General

Target

11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe
Size

90KB
MD5

7d40ed4834c2c5b88b758c0df08d5a91
SHA1

67a5207263dfd9dcf759d97dcfd4e683a89d363c
SHA256

11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da
SHA512

dc769304f387977ba105e54a9d5630bfc76bb5c20e1c0f5bb41475f4cebda2d5fefdbdf10bd063e96a87d4889a567f128530ed8aa37721f813cc9f4369df6a88
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDs:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3W

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/2784-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2784-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2784-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2784-64-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe

Executes dropped EXE 3 IoCs

pid	Process
3884	csrsll.exe
4696	csrsll.exe
2784	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-1-5-21-2878641211-696417878-3864914810-1000\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 2932 set thread context of 2624	2932	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	90
PID 3884 set thread context of 4696	3884	csrsll.exe	101
PID 3884 set thread context of 2784	3884	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2932-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2932-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2624-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2624-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2624-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2932-16-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b60-30.dat	upx
behavioral2/memory/2624-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3884-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3884-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2784-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2784-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2784-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2784-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2784-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3884-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2624-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4696-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2784-64-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe
Token: SeDebugPrivilege	4696	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2932	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe
2624	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe
3884	csrsll.exe
4696	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 2624	2932	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	90
PID 2932 wrote to memory of 2624	2932	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	90
PID 2932 wrote to memory of 2624	2932	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	90
PID 2932 wrote to memory of 2624	2932	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	90
PID 2932 wrote to memory of 2624	2932	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	90
PID 2932 wrote to memory of 2624	2932	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	90
PID 2932 wrote to memory of 2624	2932	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	90
PID 2932 wrote to memory of 2624	2932	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	90
PID 2624 wrote to memory of 1148	2624	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	91
PID 2624 wrote to memory of 1148	2624	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	91
PID 2624 wrote to memory of 1148	2624	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	91
PID 1148 wrote to memory of 1568	1148	cmd.exe	95
PID 1148 wrote to memory of 1568	1148	cmd.exe	95
PID 1148 wrote to memory of 1568	1148	cmd.exe	95
PID 2624 wrote to memory of 3884	2624	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	96
PID 2624 wrote to memory of 3884	2624	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	96
PID 2624 wrote to memory of 3884	2624	11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe	96
PID 3884 wrote to memory of 4696	3884	csrsll.exe	101
PID 3884 wrote to memory of 4696	3884	csrsll.exe	101
PID 3884 wrote to memory of 4696	3884	csrsll.exe	101
PID 3884 wrote to memory of 4696	3884	csrsll.exe	101
PID 3884 wrote to memory of 4696	3884	csrsll.exe	101
PID 3884 wrote to memory of 4696	3884	csrsll.exe	101
PID 3884 wrote to memory of 4696	3884	csrsll.exe	101
PID 3884 wrote to memory of 4696	3884	csrsll.exe	101
PID 3884 wrote to memory of 2784	3884	csrsll.exe	102
PID 3884 wrote to memory of 2784	3884	csrsll.exe	102
PID 3884 wrote to memory of 2784	3884	csrsll.exe	102
PID 3884 wrote to memory of 2784	3884	csrsll.exe	102
PID 3884 wrote to memory of 2784	3884	csrsll.exe	102
PID 3884 wrote to memory of 2784	3884	csrsll.exe	102
PID 3884 wrote to memory of 2784	3884	csrsll.exe	102
PID 3884 wrote to memory of 2784	3884	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe
"C:\Users\Admin\AppData\Local\Temp\11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Users\Admin\AppData\Local\Temp\11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe
  "C:\Users\Admin\AppData\Local\Temp\11f37145528da2cb474c75a8a00fd3c20eafce07d917d4a0794a429bf1e581da.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2624
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DTKJU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1148
  - - 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:1568
- - 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:3884
  - - 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:4696
  - - 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:2784

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\DTKJU.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
a6a18b89ea9b5f5c8f9e2209a06a137b

SHA1
0ce1099faa8ef04c7560f065bd70cbbab432f680

SHA256
ffeb9713223d2cee83391a5e2dff9ac2aa06931f774bbb8fd7e1ffb40db9c5e4

SHA512
3b150bb8d18c2d27590695615f869da82594a896382a6ce919158f9b2b3842fa2a890c7eae98245b24c70486182f6dd164e57cf6933317368d520f4059685d85

Download Submit
memory/2624-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2624-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2624-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2624-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2624-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2624-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2784-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2784-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2784-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2784-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2784-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2784-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2932-6-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/2932-3-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/2932-16-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2932-4-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/2932-7-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/2932-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2932-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3884-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3884-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3884-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4696-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads