5d2ce80deeddb7b07741f6714f4e39b879af40e96cdaa5668a0008a941a93cd4

Analysis

max time kernel
141s
max time network
130s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21-02-2024 20:32

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General

Target

5d2ce80deeddb7b07741f6714f4e39b879af40e96cdaa5668a0008a941a93cd4.exe
Size

196KB
MD5

0c900a92c0af5097704e6bf7774fd52b
SHA1

e00e667ec48c85e5b80870a1c835a51ffe06a11e
SHA256

5d2ce80deeddb7b07741f6714f4e39b879af40e96cdaa5668a0008a941a93cd4
SHA512

f9661d2884c388b3cb61e804072788377a28a197102abea3445fb253eae01d469d5e9f59d565a9ca15fcfda379f144097c1f3e9405ad4d5570bfafe28c43a98c
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOE:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXN

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2252	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1892	iuyhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\iuyhost.exe	5d2ce80deeddb7b07741f6714f4e39b879af40e96cdaa5668a0008a941a93cd4.exe
File opened for modification	C:\Windows\Debug\iuyhost.exe	5d2ce80deeddb7b07741f6714f4e39b879af40e96cdaa5668a0008a941a93cd4.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	2240	5d2ce80deeddb7b07741f6714f4e39b879af40e96cdaa5668a0008a941a93cd4.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 2252	2240	5d2ce80deeddb7b07741f6714f4e39b879af40e96cdaa5668a0008a941a93cd4.exe	29
PID 2240 wrote to memory of 2252	2240	5d2ce80deeddb7b07741f6714f4e39b879af40e96cdaa5668a0008a941a93cd4.exe	29
PID 2240 wrote to memory of 2252	2240	5d2ce80deeddb7b07741f6714f4e39b879af40e96cdaa5668a0008a941a93cd4.exe	29
PID 2240 wrote to memory of 2252	2240	5d2ce80deeddb7b07741f6714f4e39b879af40e96cdaa5668a0008a941a93cd4.exe	29

C:\Users\Admin\AppData\Local\Temp\5d2ce80deeddb7b07741f6714f4e39b879af40e96cdaa5668a0008a941a93cd4.exe
"C:\Users\Admin\AppData\Local\Temp\5d2ce80deeddb7b07741f6714f4e39b879af40e96cdaa5668a0008a941a93cd4.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\5D2CE8~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2252

C:\Windows\Debug\iuyhost.exe
C:\Windows\Debug\iuyhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1892

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
196KB

MD5
be1ccbf4dc58ee8261a175fca85e72d0

SHA1
e77483dc1c9e3a2097d41b47b21c83633f82b199

SHA256
470ea9f110e2238e08d574b631287a11211c44b70af2b56e3c3b3bbe1e0c8b34

SHA512
e12ed6105f188de4cba87d9bee1fbd87a413ce7642d5c7686927a8f5011c98b06d9b46ddb9e8879eb2f25ac81b9d8fb8a63c7ccc9f2d2722b74fc1e928a3979b

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