modiloader | bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93

Analysis

max time kernel
149s
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
17/12/2024, 23:17

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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/4696-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4696-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4696-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4696-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe

Executes dropped EXE 3 IoCs

pid	Process
2316	csrsll.exe
4636	csrsll.exe
4696	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-1-5-21-2437139445-1151884604-3026847218-1000\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 1652 set thread context of 1524	1652	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 2316 set thread context of 4636	2316	csrsll.exe	90
PID 2316 set thread context of 4696	2316	csrsll.exe	91

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1652-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1652-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1524-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1524-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1524-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1652-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cb4-29.dat	upx
behavioral2/memory/1524-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2316-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2316-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4696-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4696-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4696-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4696-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2316-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4696-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1524-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4636-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4696-61-0x0000000000400000-0x0000000000414000-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	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
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	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe
Token: SeDebugPrivilege	4636	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1652	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
1524	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe
2316	csrsll.exe
4636	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1652 wrote to memory of 1524	1652	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 1652 wrote to memory of 1524	1652	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 1652 wrote to memory of 1524	1652	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 1652 wrote to memory of 1524	1652	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 1652 wrote to memory of 1524	1652	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 1652 wrote to memory of 1524	1652	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 1652 wrote to memory of 1524	1652	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 1652 wrote to memory of 1524	1652	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	83
PID 1524 wrote to memory of 804	1524	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	84
PID 1524 wrote to memory of 804	1524	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	84
PID 1524 wrote to memory of 804	1524	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	84
PID 804 wrote to memory of 1756	804	cmd.exe	88
PID 804 wrote to memory of 1756	804	cmd.exe	88
PID 804 wrote to memory of 1756	804	cmd.exe	88
PID 1524 wrote to memory of 2316	1524	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	89
PID 1524 wrote to memory of 2316	1524	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	89
PID 1524 wrote to memory of 2316	1524	bb2d7d79b0b7abd7d80052aab219cdce5d9625c98c0af416f795e1e001332a93.exe	89
PID 2316 wrote to memory of 4636	2316	csrsll.exe	90
PID 2316 wrote to memory of 4636	2316	csrsll.exe	90
PID 2316 wrote to memory of 4636	2316	csrsll.exe	90
PID 2316 wrote to memory of 4636	2316	csrsll.exe	90
PID 2316 wrote to memory of 4636	2316	csrsll.exe	90
PID 2316 wrote to memory of 4636	2316	csrsll.exe	90
PID 2316 wrote to memory of 4636	2316	csrsll.exe	90
PID 2316 wrote to memory of 4636	2316	csrsll.exe	90
PID 2316 wrote to memory of 4696	2316	csrsll.exe	91
PID 2316 wrote to memory of 4696	2316	csrsll.exe	91
PID 2316 wrote to memory of 4696	2316	csrsll.exe	91
PID 2316 wrote to memory of 4696	2316	csrsll.exe	91
PID 2316 wrote to memory of 4696	2316	csrsll.exe	91
PID 2316 wrote to memory of 4696	2316	csrsll.exe	91
PID 2316 wrote to memory of 4696	2316	csrsll.exe	91
PID 2316 wrote to memory of 4696	2316	csrsll.exe	91

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:1652
- 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:1524
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DRQCK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:804
  - - 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:1756
- - 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:2316
  - - 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:4636
  - - 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:4696

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\DRQCK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
bd669ce307fe54fecd92879731cbebff

SHA1
422e15ae3a1f907b60e1917ba11b015844f9299c

SHA256
af6b5defffe5900eddbe504a7aa9540ece613c5ffee735fd0624c7043ff98e38

SHA512
b875fd2b0bd2714aa16217ac5ed880847f726d2de4dc831543d8e68dd37fe111c99e4544b1317256ce5583b63a1fb7012c241b6776ffbdcd3ba0b4a5e0d26fa9

Download Submit
memory/1524-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1524-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1524-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1524-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1524-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1524-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1652-6-0x0000000002940000-0x0000000002942000-memory.dmp

Filesize
8KB

Download
memory/1652-4-0x0000000002920000-0x0000000002922000-memory.dmp

Filesize
8KB

Download
memory/1652-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1652-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1652-3-0x0000000002910000-0x0000000002912000-memory.dmp

Filesize
8KB

Download
memory/1652-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2316-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2316-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2316-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4636-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4696-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4696-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4696-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4696-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4696-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4696-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads