c676c2895844d4715fd167281457e073e535e6045d4bcadd9a7a27398b84de7b

General

Target

04542f267718e0a8555ce33cf08ea44e.exe
Size

512KB
MD5

04542f267718e0a8555ce33cf08ea44e
SHA1

0a387dfbeab37809d90b523fcf7cd2c09f8ae2ba
SHA256

c676c2895844d4715fd167281457e073e535e6045d4bcadd9a7a27398b84de7b
SHA512

ca83799a0ec9e0d0aeae33750e4e4820f2dcc8922c247eafd2ba1abf0d94739407eb4a0bb67d83aba7405a0fc7afad1ef8c919d227d9a3711d7def2c6d8bc0e1
SSDEEP

6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6S:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5h

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
5036	saqzunzjir.exe

AutoIT Executable 7 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4088-0-0x0000000000400000-0x0000000000496000-memory.dmp	autoit_exe
behavioral2/files/0x0007000000023209-5.dat	autoit_exe
behavioral2/files/0x0007000000023208-19.dat	autoit_exe
behavioral2/files/0x0007000000023208-18.dat	autoit_exe
behavioral2/files/0x000700000002320b-26.dat	autoit_exe
behavioral2/files/0x0007000000023209-24.dat	autoit_exe
behavioral2/files/0x0007000000023209-23.dat	autoit_exe

Drops file in System32 directory 8 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\zxwbnlvwqommigf.exe	04542f267718e0a8555ce33cf08ea44e.exe
File created	C:\Windows\SysWOW64\tyalcmuj.exe	04542f267718e0a8555ce33cf08ea44e.exe
File opened for modification	C:\Windows\SysWOW64\tyalcmuj.exe	04542f267718e0a8555ce33cf08ea44e.exe
File created	C:\Windows\SysWOW64\ibtsvalyepkbi.exe	04542f267718e0a8555ce33cf08ea44e.exe
File opened for modification	C:\Windows\SysWOW64\ibtsvalyepkbi.exe	04542f267718e0a8555ce33cf08ea44e.exe
File created	C:\Windows\SysWOW64\saqzunzjir.exe	04542f267718e0a8555ce33cf08ea44e.exe
File opened for modification	C:\Windows\SysWOW64\saqzunzjir.exe	04542f267718e0a8555ce33cf08ea44e.exe
File created	C:\Windows\SysWOW64\zxwbnlvwqommigf.exe	04542f267718e0a8555ce33cf08ea44e.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 7 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com3 = "2EB0B05847EF39EE53CDBAA633E9D7CC"	04542f267718e0a8555ce33cf08ea44e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com4 = "7EF8FFFC4F5F82129045D75F7DE0BCE4E137584767356345D79D"	04542f267718e0a8555ce33cf08ea44e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom1 = "E7F368C3FE6A22DCD27DD0A88A7F9017"	04542f267718e0a8555ce33cf08ea44e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom2 = "183DC67C15E7DAB1B8C97C93EC9F37B9"	04542f267718e0a8555ce33cf08ea44e.exe
Key created	\REGISTRY\MACHINE\Software\Classes\CLV.Classes	04542f267718e0a8555ce33cf08ea44e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com1 = "32402C799D5782556D4276A577552CAD7D8765DB"	04542f267718e0a8555ce33cf08ea44e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com2 = "6BBFF9BCFE6AF1E0837E3B36819D3E96B38E02FB4365034FE1BE42E708D3"	04542f267718e0a8555ce33cf08ea44e.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe
4088	04542f267718e0a8555ce33cf08ea44e.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4088 wrote to memory of 5036	4088	04542f267718e0a8555ce33cf08ea44e.exe	91
PID 4088 wrote to memory of 5036	4088	04542f267718e0a8555ce33cf08ea44e.exe	91
PID 4088 wrote to memory of 5036	4088	04542f267718e0a8555ce33cf08ea44e.exe	91

C:\Users\Admin\AppData\Local\Temp\04542f267718e0a8555ce33cf08ea44e.exe
"C:\Users\Admin\AppData\Local\Temp\04542f267718e0a8555ce33cf08ea44e.exe"
1⤵
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4088
- C:\Windows\SysWOW64\saqzunzjir.exe
  saqzunzjir.exe
  2⤵
  - Executes dropped EXE
  PID:5036
- C:\Windows\SysWOW64\zxwbnlvwqommigf.exe
  zxwbnlvwqommigf.exe
  2⤵
  PID:4120
- C:\Windows\SysWOW64\ibtsvalyepkbi.exe
  ibtsvalyepkbi.exe
  2⤵
  PID:3168
- C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
  "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""
  2⤵
  PID:1392
- C:\Windows\SysWOW64\tyalcmuj.exe
  tyalcmuj.exe
  2⤵
  PID:4388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\saqzunzjir.exe

Filesize
141KB

MD5
3e046d0886559792ae67e4ba945ff763

SHA1
b2e4ba083a7c6bdeb2c46e1b1681a098dfd8ff92

SHA256
09bf46701e05b114089f71671d54e1df5f11447093096a1b1f1eda87a94f2f28

SHA512
4196db8d2066dde7b40a805efd198e2d374ab859f4c052ac14b766d55ff1d71e4bb133c8f61fbfe1520c97c37ef5e0cb9c81ff0dc356c637821e3b4f5e566dfa

Download Submit
C:\Windows\SysWOW64\saqzunzjir.exe

Filesize
512KB

MD5
63a4507fa5fccaf2de6cc01ab80e15b7

SHA1
f30ad09645ef4ef9d8b6ea6280f790a9875da133

SHA256
d484c6286cc717af03aecba65d5a7e45570f4c7485387f833e54bf10cc8f403b

SHA512
e3432b3c0b7aa72f409542763900df22962032332ee327bc04288c5ee65a33b209c3e059be4d528ada63b18a7b9de8961bf58673b19cc841c6f2fd5ff1b66583

Download Submit
C:\Windows\SysWOW64\tyalcmuj.exe

Filesize
26KB

MD5
065b7f110ffe4d62f204e3af7fa36f17

SHA1
4045484ce531b1b925b545ff30d6c30c5039c66b

SHA256
c113c5a815f87ea0b80e14adf4886ea63e091960843c278099f5a4e64aa29c99

SHA512
ebe3b25e96b42f0f98ea4e7241db7d1ff79b64ceca4d5bccb3cecc4c15946ad6125bc68dc99e53f7990310f42c75d92291e39185518e6f119381e750f72d1012

Download Submit
C:\Windows\SysWOW64\zxwbnlvwqommigf.exe

Filesize
95KB

MD5
513718653b4089436713071fbda2d777

SHA1
c66701f8b07e580f77bdceb0df2a314f66f48f43

SHA256
198c846e45c097db6614530866a915b1eb90c090d343208b76f7b5b94b52669c

SHA512
29f7286339cc082b4a9e3bd91b6e948ae497c865751b8127abf970bff420bb0103d1c5ded60269b61a927835f9a0d9c2a5027ed3d2f3f0bd759e17402cc30bcc

Download Submit
C:\Windows\SysWOW64\zxwbnlvwqommigf.exe

Filesize
92KB

MD5
6662b185f19fbf697c56a25c92de7961

SHA1
0df0c0df0de3724258df2549c583e3c934aca726

SHA256
c11edb9e97848e20319fba876d9382c7193f68323eff1f7ed805bb04303bdc86

SHA512
c6e2cb83f68a63ca299dae843d2697d41dab8b565fb4005755b0d255b388779b6c1dad97375009c995f0a3d2e0acb4cc820090ca5dc24ee11e1a3de5b1a4921f

Download Submit
C:\Windows\SysWOW64\zxwbnlvwqommigf.exe

Filesize
512KB

MD5
099bdf1d9e0e66fe24a69af4c67c0527

SHA1
f05492b9d104f6c80cfb3470f87aaa9e4914b113

SHA256
fa0505d4959700ba34319d9a2eeecbdc0c55e06475b685ccee6dee25ec3a195c

SHA512
b1883cbb55e3f62f4bb1a07a80a05b60ea1162b572f97f8cb5afa1686d46f541a2ec2052426fb9a07e694a9fd322380239461fd423749aa66c7a61ed08519ad9

Download Submit
memory/4088-0-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download

Analysis

Sharing