64fafe82b69c821735041ca2841d3592d9dd6d3837d363c90c027c972f2a4004

Analysis

max time kernel
141s
max time network
128s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12/01/2024, 16:35

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General

Target

64fafe82b69c821735041ca2841d3592d9dd6d3837d363c90c027c972f2a4004.exe
Size

194KB
MD5

819b6bf6ed6aac52b504dfbc473ef1b9
SHA1

9272b380835e1d7087f6b20ab558a80b07f61c68
SHA256

64fafe82b69c821735041ca2841d3592d9dd6d3837d363c90c027c972f2a4004
SHA512

36d6e660cb4cbfbdf97ad7e0066101faf53618be9b8978da90ef6081a3d41a77bf4fc10d59e8184277675d690a659a35a525b0707af76760b524c84f47dad5c6
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOv:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXX6

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2088	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2496	iuyhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\iuyhost.exe	64fafe82b69c821735041ca2841d3592d9dd6d3837d363c90c027c972f2a4004.exe
File opened for modification	C:\Windows\Debug\iuyhost.exe	64fafe82b69c821735041ca2841d3592d9dd6d3837d363c90c027c972f2a4004.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	iuyhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	iuyhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1016	64fafe82b69c821735041ca2841d3592d9dd6d3837d363c90c027c972f2a4004.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1016 wrote to memory of 2088	1016	64fafe82b69c821735041ca2841d3592d9dd6d3837d363c90c027c972f2a4004.exe	29
PID 1016 wrote to memory of 2088	1016	64fafe82b69c821735041ca2841d3592d9dd6d3837d363c90c027c972f2a4004.exe	29
PID 1016 wrote to memory of 2088	1016	64fafe82b69c821735041ca2841d3592d9dd6d3837d363c90c027c972f2a4004.exe	29
PID 1016 wrote to memory of 2088	1016	64fafe82b69c821735041ca2841d3592d9dd6d3837d363c90c027c972f2a4004.exe	29

C:\Users\Admin\AppData\Local\Temp\64fafe82b69c821735041ca2841d3592d9dd6d3837d363c90c027c972f2a4004.exe
"C:\Users\Admin\AppData\Local\Temp\64fafe82b69c821735041ca2841d3592d9dd6d3837d363c90c027c972f2a4004.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1016
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\64FAFE~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2088

C:\Windows\Debug\iuyhost.exe
C:\Windows\Debug\iuyhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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
195KB

MD5
6a899fbaec6710850242cb9359dc86d0

SHA1
6c04f4649b39c798648a603b3613da199d648c8c

SHA256
12f08619ade41a9fc57bf246fbdbb835685196d7acd5b4ce6691059074bf9ba1

SHA512
7c83c43364a5315d930027ab9ff19deb401054968c7629260979e21174fc27fe8996dc03f28a65678e57cf418d53de74b1955ea7854cab1e2a76b4bc2dc12e34

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