modiloader | e98e4c88a2f80f6c18652ff9e46f4ddfb4fa7fbe44fba125c0132f8a6853410a

Analysis

max time kernel
119s
max time network
16s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
14/09/2024, 21:20

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General

Target

3baa4e41687636b9bdf27f2e3ea02cb0N.exe
Size

90KB
MD5

3baa4e41687636b9bdf27f2e3ea02cb0
SHA1

e665f36bbef6a748e67c088801e5aa74d16469f2
SHA256

e98e4c88a2f80f6c18652ff9e46f4ddfb4fa7fbe44fba125c0132f8a6853410a
SHA512

fec430b1000a4f42e8ce8844e6b272a16d37011c99f0f453732e74b0165d7e943efd53d4163f47fadd2471da9e194f3aafcdc81dbfc916619c26d0306be292e6
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 2 IoCs

resource	yara_rule
behavioral1/memory/1148-254-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1148-261-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1604	csrsll.exe
816	csrsll.exe
1148	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2740	3baa4e41687636b9bdf27f2e3ea02cb0N.exe
2740	3baa4e41687636b9bdf27f2e3ea02cb0N.exe
2740	3baa4e41687636b9bdf27f2e3ea02cb0N.exe
2740	3baa4e41687636b9bdf27f2e3ea02cb0N.exe
2740	3baa4e41687636b9bdf27f2e3ea02cb0N.exe

UPX packed file 25 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1952-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1952-90-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1952-83-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2740-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1952-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2740-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2740-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1952-93-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1952-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1952-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1952-65-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2740-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2740-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2740-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2740-110-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2740-109-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a0000000173c2-152.dat	upx
behavioral1/memory/2740-149-0x0000000002590000-0x00000000025E3000-memory.dmp	upx
behavioral1/memory/2740-156-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1604-223-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1148-254-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1604-255-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2740-260-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/816-262-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1148-261-0x0000000000400000-0x0000000000414000-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-1-5-21-3434294380-2554721341-1919518612-1000\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 1952 set thread context of 2740	1952	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	30
PID 1604 set thread context of 816	1604	csrsll.exe	36
PID 1604 set thread context of 1148	1604	csrsll.exe	37

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	3baa4e41687636b9bdf27f2e3ea02cb0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3baa4e41687636b9bdf27f2e3ea02cb0N.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	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe
Token: SeDebugPrivilege	816	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1952	3baa4e41687636b9bdf27f2e3ea02cb0N.exe
2740	3baa4e41687636b9bdf27f2e3ea02cb0N.exe
1604	csrsll.exe
816	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 2740	1952	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	30
PID 1952 wrote to memory of 2740	1952	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	30
PID 1952 wrote to memory of 2740	1952	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	30
PID 1952 wrote to memory of 2740	1952	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	30
PID 1952 wrote to memory of 2740	1952	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	30
PID 1952 wrote to memory of 2740	1952	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	30
PID 1952 wrote to memory of 2740	1952	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	30
PID 1952 wrote to memory of 2740	1952	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	30
PID 2740 wrote to memory of 2948	2740	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	32
PID 2740 wrote to memory of 2948	2740	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	32
PID 2740 wrote to memory of 2948	2740	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	32
PID 2740 wrote to memory of 2948	2740	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	32
PID 2948 wrote to memory of 576	2948	cmd.exe	34
PID 2948 wrote to memory of 576	2948	cmd.exe	34
PID 2948 wrote to memory of 576	2948	cmd.exe	34
PID 2948 wrote to memory of 576	2948	cmd.exe	34
PID 2740 wrote to memory of 1604	2740	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	35
PID 2740 wrote to memory of 1604	2740	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	35
PID 2740 wrote to memory of 1604	2740	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	35
PID 2740 wrote to memory of 1604	2740	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	35
PID 1604 wrote to memory of 816	1604	csrsll.exe	36
PID 1604 wrote to memory of 816	1604	csrsll.exe	36
PID 1604 wrote to memory of 816	1604	csrsll.exe	36
PID 1604 wrote to memory of 816	1604	csrsll.exe	36
PID 1604 wrote to memory of 816	1604	csrsll.exe	36
PID 1604 wrote to memory of 816	1604	csrsll.exe	36
PID 1604 wrote to memory of 816	1604	csrsll.exe	36
PID 1604 wrote to memory of 816	1604	csrsll.exe	36
PID 1604 wrote to memory of 1148	1604	csrsll.exe	37
PID 1604 wrote to memory of 1148	1604	csrsll.exe	37
PID 1604 wrote to memory of 1148	1604	csrsll.exe	37
PID 1604 wrote to memory of 1148	1604	csrsll.exe	37
PID 1604 wrote to memory of 1148	1604	csrsll.exe	37
PID 1604 wrote to memory of 1148	1604	csrsll.exe	37
PID 1604 wrote to memory of 1148	1604	csrsll.exe	37
PID 1604 wrote to memory of 1148	1604	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\3baa4e41687636b9bdf27f2e3ea02cb0N.exe
"C:\Users\Admin\AppData\Local\Temp\3baa4e41687636b9bdf27f2e3ea02cb0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Users\Admin\AppData\Local\Temp\3baa4e41687636b9bdf27f2e3ea02cb0N.exe
  "C:\Users\Admin\AppData\Local\Temp\3baa4e41687636b9bdf27f2e3ea02cb0N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2740
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\OOMUG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2948
  - - 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:576
- - 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:1604
  - - 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:816
  - - 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:1148

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

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\OOMUG.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
239c23cf0159818b71e4d5f6b584efd6

SHA1
af2dca9a4e8772b446d910701fa8a41297c95ee9

SHA256
6705741690d5845debf68c5e505fcaa191e0b538a8ce09b4f06bb1ea49da5448

SHA512
1d1a66ee9383174ab8c8c4a46919a6f7652bcab0170e63c7bddca54f17e53f06a370c4dbbe74c41ed100a687fc859a4d9a08ccb0d07b4e945c8050ce5f6b5934

Download Submit
memory/816-262-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1148-261-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1148-254-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1604-255-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1604-180-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1604-169-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1604-223-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1604-159-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1952-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1952-60-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/1952-83-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1952-93-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1952-90-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1952-80-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/1952-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1952-71-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/1952-65-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1952-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1952-40-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/1952-28-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/1952-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1952-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1952-15-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/1952-23-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1952-155-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1952-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2740-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-151-0x0000000002590000-0x00000000025E3000-memory.dmp

Filesize
332KB

Download
memory/2740-150-0x0000000002590000-0x00000000025E3000-memory.dmp

Filesize
332KB

Download
memory/2740-149-0x0000000002590000-0x00000000025E3000-memory.dmp

Filesize
332KB

Download
memory/2740-109-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-156-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-110-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-253-0x0000000002590000-0x00000000025E3000-memory.dmp

Filesize
332KB

Download
memory/2740-251-0x0000000002590000-0x00000000025E3000-memory.dmp

Filesize
332KB

Download
memory/2740-260-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2740-100-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads