modiloader | 2cadc88ff6b1e2e299b3c78f44d249d157ed556badb652efc72615d86677c877

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10/09/2024, 16:44

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General

Target

01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe
Size

90KB
MD5

01a34dc0bedf14ef9f2b54f9bc16e9d0
SHA1

290f5cf9e2e09906201ff0af888aa3d54351ab71
SHA256

2cadc88ff6b1e2e299b3c78f44d249d157ed556badb652efc72615d86677c877
SHA512

e92ef92141986fd53ed567bac9d503cbd3e36282779614262ef04551192f555bf9e6e0b50a36da1d4d88d267bc7d0b0d82a27e3c16d420561aa579e655359fe4
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/4612-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4612-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4612-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4612-64-0x0000000000400000-0x0000000000414000-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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe

Executes dropped EXE 3 IoCs

pid	Process
3276	csrsll.exe
3388	csrsll.exe
4612	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4396-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4396-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1608-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1608-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1608-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4396-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0003000000022d12-29.dat	upx
behavioral2/memory/3276-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1608-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3276-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3276-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4612-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4612-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4612-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4612-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3276-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4612-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1608-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3388-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4612-64-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-355097885-2402257403-2971294179-1000\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 4396 set thread context of 1608	4396	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	86
PID 3276 set thread context of 3388	3276	csrsll.exe	92
PID 3276 set thread context of 4612	3276	csrsll.exe	93

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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe
Token: SeDebugPrivilege	3388	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4396	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe
1608	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe
3276	csrsll.exe
3388	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4396 wrote to memory of 1608	4396	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	86
PID 4396 wrote to memory of 1608	4396	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	86
PID 4396 wrote to memory of 1608	4396	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	86
PID 4396 wrote to memory of 1608	4396	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	86
PID 4396 wrote to memory of 1608	4396	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	86
PID 4396 wrote to memory of 1608	4396	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	86
PID 4396 wrote to memory of 1608	4396	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	86
PID 4396 wrote to memory of 1608	4396	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	86
PID 1608 wrote to memory of 380	1608	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	87
PID 1608 wrote to memory of 380	1608	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	87
PID 1608 wrote to memory of 380	1608	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	87
PID 380 wrote to memory of 4624	380	cmd.exe	90
PID 380 wrote to memory of 4624	380	cmd.exe	90
PID 380 wrote to memory of 4624	380	cmd.exe	90
PID 1608 wrote to memory of 3276	1608	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	91
PID 1608 wrote to memory of 3276	1608	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	91
PID 1608 wrote to memory of 3276	1608	01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe	91
PID 3276 wrote to memory of 3388	3276	csrsll.exe	92
PID 3276 wrote to memory of 3388	3276	csrsll.exe	92
PID 3276 wrote to memory of 3388	3276	csrsll.exe	92
PID 3276 wrote to memory of 3388	3276	csrsll.exe	92
PID 3276 wrote to memory of 3388	3276	csrsll.exe	92
PID 3276 wrote to memory of 3388	3276	csrsll.exe	92
PID 3276 wrote to memory of 3388	3276	csrsll.exe	92
PID 3276 wrote to memory of 3388	3276	csrsll.exe	92
PID 3276 wrote to memory of 4612	3276	csrsll.exe	93
PID 3276 wrote to memory of 4612	3276	csrsll.exe	93
PID 3276 wrote to memory of 4612	3276	csrsll.exe	93
PID 3276 wrote to memory of 4612	3276	csrsll.exe	93
PID 3276 wrote to memory of 4612	3276	csrsll.exe	93
PID 3276 wrote to memory of 4612	3276	csrsll.exe	93
PID 3276 wrote to memory of 4612	3276	csrsll.exe	93
PID 3276 wrote to memory of 4612	3276	csrsll.exe	93

C:\Users\Admin\AppData\Local\Temp\01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe
"C:\Users\Admin\AppData\Local\Temp\01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4396
- C:\Users\Admin\AppData\Local\Temp\01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe
  "C:\Users\Admin\AppData\Local\Temp\01a34dc0bedf14ef9f2b54f9bc16e9d0N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1608
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\QFPFB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:380
  - - 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:4624
- - 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:3276
  - - 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:3388
  - - 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:4612

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\QFPFB.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
1cf910654179da199430b7647dd50937

SHA1
35b8aba002ad6f618a8efd4cc335f86f797a958c

SHA256
7ff9c36156ecaa49ee0f865fb6294eef39bc456c44f34b8ae43474dd31f84109

SHA512
59f3b16f8fc8b26a19b0047e7cd4bf6ac7b6fff79af37c38aa8d8441ac1737d7d3e5b25d96c75d73ada7a3d9767b099c818b9cb55b9ebf8bde9eb713ca12f3c6

Download Submit
memory/1608-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1608-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1608-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1608-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1608-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1608-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3276-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3276-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3276-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3276-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3388-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4396-3-0x0000000002B40000-0x0000000002B42000-memory.dmp

Filesize
8KB

Download
memory/4396-4-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/4396-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4396-6-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/4396-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4396-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4612-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4612-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4612-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4612-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4612-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4612-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads