modiloader | bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 23:14

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General

Target

bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
Size

90KB
MD5

6690ce2b6e4bd5f705305ef10927e9b0
SHA1

4a42987613ad2331b9694720b30fd64283c30e29
SHA256

bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93
SHA512

96a74a7634bf96aff5c9ef2b70c4ef98b193b443b9b9919a6183ae7d088f649678816d17428adeea070cce53e580fd34bf328dcf376d032739ea054d91a54bf3
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDk:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3u

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/3384-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3384-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3384-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3384-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe

Executes dropped EXE 3 IoCs

pid	Process
3096	csrsll.exe
2432	csrsll.exe
3384	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 4816 set thread context of 4488	4816	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 3096 set thread context of 2432	3096	csrsll.exe	95
PID 3096 set thread context of 3384	3096	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4816-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4816-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4488-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4488-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4816-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4488-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c9e-29.dat	upx
behavioral2/memory/4488-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3096-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3096-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3384-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3384-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3384-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3384-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3096-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3384-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4488-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2432-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3384-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.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	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe
Token: SeDebugPrivilege	2432	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4816	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
4488	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
3096	csrsll.exe
2432	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 4488	4816	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 4816 wrote to memory of 4488	4816	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 4816 wrote to memory of 4488	4816	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 4816 wrote to memory of 4488	4816	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 4816 wrote to memory of 4488	4816	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 4816 wrote to memory of 4488	4816	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 4816 wrote to memory of 4488	4816	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 4816 wrote to memory of 4488	4816	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 4488 wrote to memory of 1640	4488	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	84
PID 4488 wrote to memory of 1640	4488	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	84
PID 4488 wrote to memory of 1640	4488	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	84
PID 1640 wrote to memory of 1412	1640	cmd.exe	88
PID 1640 wrote to memory of 1412	1640	cmd.exe	88
PID 1640 wrote to memory of 1412	1640	cmd.exe	88
PID 4488 wrote to memory of 3096	4488	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	89
PID 4488 wrote to memory of 3096	4488	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	89
PID 4488 wrote to memory of 3096	4488	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	89
PID 3096 wrote to memory of 2432	3096	csrsll.exe	95
PID 3096 wrote to memory of 2432	3096	csrsll.exe	95
PID 3096 wrote to memory of 2432	3096	csrsll.exe	95
PID 3096 wrote to memory of 2432	3096	csrsll.exe	95
PID 3096 wrote to memory of 2432	3096	csrsll.exe	95
PID 3096 wrote to memory of 2432	3096	csrsll.exe	95
PID 3096 wrote to memory of 2432	3096	csrsll.exe	95
PID 3096 wrote to memory of 2432	3096	csrsll.exe	95
PID 3096 wrote to memory of 3384	3096	csrsll.exe	96
PID 3096 wrote to memory of 3384	3096	csrsll.exe	96
PID 3096 wrote to memory of 3384	3096	csrsll.exe	96
PID 3096 wrote to memory of 3384	3096	csrsll.exe	96
PID 3096 wrote to memory of 3384	3096	csrsll.exe	96
PID 3096 wrote to memory of 3384	3096	csrsll.exe	96
PID 3096 wrote to memory of 3384	3096	csrsll.exe	96
PID 3096 wrote to memory of 3384	3096	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
"C:\Users\Admin\AppData\Local\Temp\bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Users\Admin\AppData\Local\Temp\bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
  "C:\Users\Admin\AppData\Local\Temp\bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4488
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HVRPU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1640
  - - 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:1412
- - 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:3096
  - - 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:2432
  - - 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:3384

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\HVRPU.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
078e00a0dadb401d6dfed831bfbb671b

SHA1
2b0f539405462ab1f2c64f6b550b40fb976124ec

SHA256
370e535c06e86f511c4f7b5cdb7fd8370c2000d4276b293f7f5372d85f0308de

SHA512
e74d075520eab3b1f80208472048ba6950c8750097a876420d405caae2b6232d8c69a25efc30166d2488c42c583a51958c6095ce6fb4ce12cd0d5ece5e8c0513

Download Submit
memory/2432-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3096-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3096-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3096-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3384-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3384-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3384-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3384-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3384-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3384-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4488-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4488-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4488-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4488-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4488-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4816-6-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/4816-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4816-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4816-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4816-4-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download
memory/4816-3-0x00000000021A0000-0x00000000021A2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads