690e1df343c0117149eb40516b54fa7979725907a780b9824a6473798487a82c

General

Target

690e1df343c0117149eb40516b54fa7979725907a780b9824a6473798487a82c.exe
Size

3.1MB
MD5

85b0de573b4d6c6cbac0a4f99b71869d
SHA1

d41dd09ca60a2aac44ab3df51b28e762624a8d9d
SHA256

690e1df343c0117149eb40516b54fa7979725907a780b9824a6473798487a82c
SHA512

6dd3e6e1cd09f4804684f76ed332983b920ce0a0933973e77177383c0abfd7e694305652524665bbea3bc3c9bfd3e9ae9da4db0461f8bbc3cdf088d362e88da1
SSDEEP

49152:QYFxyqqnfc8ND3CTmM3ZuETn5/mk32S2fSahSZISUw0zr:/FIqqnfcaWiA5/mpxDYZ3E

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3696	twunk_32.exe
4300	svchost.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Program Files\\Common Files\\Microsoft Shared\\MSINFO\\svchost.exe\""	twunk_32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\Microsoft Shared\MSINFO\svchost.bat	twunk_32.exe
File created	C:\Program Files\Common Files\Microsoft Shared\MSINFO\svchost.exe	twunk_32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\MSINFO\svchost.exe	twunk_32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1868	2232	WerFault.exe	82

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4300	svchost.exe
Token: SeIncBasePriorityPrivilege	4300	svchost.exe
Token: SeIncBasePriorityPrivilege	4300	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2232	690e1df343c0117149eb40516b54fa7979725907a780b9824a6473798487a82c.exe
2232	690e1df343c0117149eb40516b54fa7979725907a780b9824a6473798487a82c.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 3696	2232	690e1df343c0117149eb40516b54fa7979725907a780b9824a6473798487a82c.exe	83
PID 2232 wrote to memory of 3696	2232	690e1df343c0117149eb40516b54fa7979725907a780b9824a6473798487a82c.exe	83
PID 2232 wrote to memory of 3696	2232	690e1df343c0117149eb40516b54fa7979725907a780b9824a6473798487a82c.exe	83
PID 3696 wrote to memory of 4300	3696	twunk_32.exe	84
PID 3696 wrote to memory of 4300	3696	twunk_32.exe	84
PID 3696 wrote to memory of 4300	3696	twunk_32.exe	84
PID 3696 wrote to memory of 1516	3696	twunk_32.exe	85
PID 3696 wrote to memory of 1516	3696	twunk_32.exe	85
PID 3696 wrote to memory of 1516	3696	twunk_32.exe	85

C:\Users\Admin\AppData\Local\Temp\690e1df343c0117149eb40516b54fa7979725907a780b9824a6473798487a82c.exe
"C:\Users\Admin\AppData\Local\Temp\690e1df343c0117149eb40516b54fa7979725907a780b9824a6473798487a82c.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2232
- C:\twunk_32.exe
  \twunk_32.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:3696
- - C:\Program Files\Common Files\Microsoft Shared\MSINFO\svchost.exe
    "C:\Program Files\Common Files\Microsoft Shared\MSINFO\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:4300
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Program Files\Common Files\Microsoft Shared\MSINFO\svchost.bat""
    3⤵
    PID:1516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2232 -s 700
  2⤵
  - Program crash
  PID:1868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2232 -ip 2232
1⤵
PID:1992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\Common Files\Microsoft Shared\MSINFO\svchost.bat

Filesize
80B

MD5
b1c79209ce56278cd95bdd1bbbd81e90

SHA1
58a381216782c57611f235eeb1e3d1a8d53527a8

SHA256
99baf2e12084ff09a2193c1d9f0af7d0ebc181c0e9246db381d95824768d1654

SHA512
f9eae36ac424602ac2878fd41e9af79fecce77391d2f6730360bf7882acfb2531630f874596a6df2cf939bb361c0e500951c6bbe837d78db7f07b0fd9e62cfae

Download Submit
C:\Program Files\Common Files\Microsoft Shared\MSINFO\svchost.exe

Filesize
972KB

MD5
037356955530f01591cbf09296cf3117

SHA1
f3bf6c7e20de2d699f80f0f9662e8fa1ad555ab2

SHA256
02d0e961194b1b76631d160b43f2c10ffd1f68729afe6b87c723806bf4f38784

SHA512
48ac29d8e1d6162aa23bb9f54590f5097cf498e3c87ab0879790a40399b3534c383197b11dd5f1d4b3c3e26e5606eb29839dce32117002d8bc5e0b703bdbf52d

Download Submit
C:\Program Files\Common Files\microsoft shared\MSInfo\svchost.exe

Filesize
972KB

MD5
037356955530f01591cbf09296cf3117

SHA1
f3bf6c7e20de2d699f80f0f9662e8fa1ad555ab2

SHA256
02d0e961194b1b76631d160b43f2c10ffd1f68729afe6b87c723806bf4f38784

SHA512
48ac29d8e1d6162aa23bb9f54590f5097cf498e3c87ab0879790a40399b3534c383197b11dd5f1d4b3c3e26e5606eb29839dce32117002d8bc5e0b703bdbf52d

Download Submit
C:\Program Files\Common Files\microsoft shared\MSInfo\svchost.exe

Filesize
972KB

MD5
037356955530f01591cbf09296cf3117

SHA1
f3bf6c7e20de2d699f80f0f9662e8fa1ad555ab2

SHA256
02d0e961194b1b76631d160b43f2c10ffd1f68729afe6b87c723806bf4f38784

SHA512
48ac29d8e1d6162aa23bb9f54590f5097cf498e3c87ab0879790a40399b3534c383197b11dd5f1d4b3c3e26e5606eb29839dce32117002d8bc5e0b703bdbf52d

Download Submit
C:\twunk_32.exe

Filesize
972KB

MD5
037356955530f01591cbf09296cf3117

SHA1
f3bf6c7e20de2d699f80f0f9662e8fa1ad555ab2

SHA256
02d0e961194b1b76631d160b43f2c10ffd1f68729afe6b87c723806bf4f38784

SHA512
48ac29d8e1d6162aa23bb9f54590f5097cf498e3c87ab0879790a40399b3534c383197b11dd5f1d4b3c3e26e5606eb29839dce32117002d8bc5e0b703bdbf52d

Download Submit
C:\twunk_32.exe

Filesize
972KB

MD5
037356955530f01591cbf09296cf3117

SHA1
f3bf6c7e20de2d699f80f0f9662e8fa1ad555ab2

SHA256
02d0e961194b1b76631d160b43f2c10ffd1f68729afe6b87c723806bf4f38784

SHA512
48ac29d8e1d6162aa23bb9f54590f5097cf498e3c87ab0879790a40399b3534c383197b11dd5f1d4b3c3e26e5606eb29839dce32117002d8bc5e0b703bdbf52d

Download Submit
memory/3696-5-0x0000000000830000-0x0000000000831000-memory.dmp

Filesize
4KB

Download
memory/3696-14-0x0000000000400000-0x0000000000503000-memory.dmp

Filesize
1.0MB

Download
memory/4300-11-0x0000000002390000-0x0000000002391000-memory.dmp

Filesize
4KB

Download
memory/4300-17-0x0000000000400000-0x0000000000503000-memory.dmp

Filesize
1.0MB

Download
memory/4300-18-0x0000000002390000-0x0000000002391000-memory.dmp

Filesize
4KB

Download
memory/4300-24-0x0000000000400000-0x0000000000503000-memory.dmp

Filesize
1.0MB

Download
memory/4300-30-0x0000000000400000-0x0000000000503000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads