05b2bfdf7885415deba717069dcc31fe1c24bd04eb9b4a80c1afc334a810b1e9

Analysis

max time kernel
141s
max time network
127s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
27-08-2023 01:44

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General

Target

05b2bfdf7885415deba717069dcc31fe1c24bd04eb9b4a80c1afc334a810b1e9.exe
Size

198KB
MD5

b1d28d779ad248da1cffa332472ca96d
SHA1

290640dda80fc34fe9a1949360ce1969cda8e5f1
SHA256

05b2bfdf7885415deba717069dcc31fe1c24bd04eb9b4a80c1afc334a810b1e9
SHA512

657d6d8db031a0fa3aec799fc9704cc45460ca76dd21c9b2a72b1752a6288bc2e3f5852567d404273ea79a19a3a247c411c229bfc1e526172bbf53fb796083c8
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOM:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXx

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1148	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2260	iuyhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\iuyhost.exe	05b2bfdf7885415deba717069dcc31fe1c24bd04eb9b4a80c1afc334a810b1e9.exe
File created	C:\Windows\Debug\iuyhost.exe	05b2bfdf7885415deba717069dcc31fe1c24bd04eb9b4a80c1afc334a810b1e9.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2256	05b2bfdf7885415deba717069dcc31fe1c24bd04eb9b4a80c1afc334a810b1e9.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 1148	2256	05b2bfdf7885415deba717069dcc31fe1c24bd04eb9b4a80c1afc334a810b1e9.exe	29
PID 2256 wrote to memory of 1148	2256	05b2bfdf7885415deba717069dcc31fe1c24bd04eb9b4a80c1afc334a810b1e9.exe	29
PID 2256 wrote to memory of 1148	2256	05b2bfdf7885415deba717069dcc31fe1c24bd04eb9b4a80c1afc334a810b1e9.exe	29
PID 2256 wrote to memory of 1148	2256	05b2bfdf7885415deba717069dcc31fe1c24bd04eb9b4a80c1afc334a810b1e9.exe	29

C:\Users\Admin\AppData\Local\Temp\05b2bfdf7885415deba717069dcc31fe1c24bd04eb9b4a80c1afc334a810b1e9.exe
"C:\Users\Admin\AppData\Local\Temp\05b2bfdf7885415deba717069dcc31fe1c24bd04eb9b4a80c1afc334a810b1e9.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\05B2BF~1.EXE > nul
  2⤵
  - Deletes itself
  PID:1148

C:\Windows\Debug\iuyhost.exe
C:\Windows\Debug\iuyhost.exe
1⤵
- Executes dropped EXE
PID:2260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\debug\iuyhost.exe

Filesize
198KB

MD5
2994cedf9a90969fb62a032c98eb011f

SHA1
72e10fe566192878f68a7ba52c30b14018432ca8

SHA256
8a6de25473311e1e25e11d4170ed1c8db8ca498687e1c2325c841f7ccf518ecc

SHA512
2b332b3fd52fa35d454177cc0e63d6e10d8a954baecd47d1ad3f673b19c28ed245c18a49ddf706b696b64ba8b4186e83608a9d92ce1f52e2bc3d9e98233a6933

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