d11a85a30b33b991175358736e3bc932259545e4532c8fb782acb86a2d9c3016

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
01/02/2024, 17:32

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General

Target

d11a85a30b33b991175358736e3bc932259545e4532c8fb782acb86a2d9c3016.exe
Size

196KB
MD5

6af1c603445772dc6aaa7558e9635e73
SHA1

06eb8231a38621b87aa1936a6295b3d2c3ef35b1
SHA256

d11a85a30b33b991175358736e3bc932259545e4532c8fb782acb86a2d9c3016
SHA512

a226efc876a2cf2c3266a6359862f7e5db108c3ae6096335fc347da68f69d598236cce78805a92fe64318f1578f70d64d9a89127f3a9b73fe7726540e080bcdc
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOG:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXD

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2388	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1036	iuyhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\iuyhost.exe	d11a85a30b33b991175358736e3bc932259545e4532c8fb782acb86a2d9c3016.exe
File opened for modification	C:\Windows\Debug\iuyhost.exe	d11a85a30b33b991175358736e3bc932259545e4532c8fb782acb86a2d9c3016.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	2356	d11a85a30b33b991175358736e3bc932259545e4532c8fb782acb86a2d9c3016.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2388	2356	d11a85a30b33b991175358736e3bc932259545e4532c8fb782acb86a2d9c3016.exe	29
PID 2356 wrote to memory of 2388	2356	d11a85a30b33b991175358736e3bc932259545e4532c8fb782acb86a2d9c3016.exe	29
PID 2356 wrote to memory of 2388	2356	d11a85a30b33b991175358736e3bc932259545e4532c8fb782acb86a2d9c3016.exe	29
PID 2356 wrote to memory of 2388	2356	d11a85a30b33b991175358736e3bc932259545e4532c8fb782acb86a2d9c3016.exe	29

C:\Users\Admin\AppData\Local\Temp\d11a85a30b33b991175358736e3bc932259545e4532c8fb782acb86a2d9c3016.exe
"C:\Users\Admin\AppData\Local\Temp\d11a85a30b33b991175358736e3bc932259545e4532c8fb782acb86a2d9c3016.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\D11A85~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2388

C:\Windows\Debug\iuyhost.exe
C:\Windows\Debug\iuyhost.exe
1⤵
- Executes dropped EXE
PID:1036

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
196KB

MD5
3abb7428d7f40ee92c9713d882d0cd60

SHA1
f37e6454c15635f5bbd96f903de1c00fad6b5925

SHA256
f71729ba59a4e872b134fa52e3b3ec6c3cf64f05ba181650e9785611eda9c0b6

SHA512
509612232c8a51429f321c3e51d5fca274861a2af375a0f7a502646cc98a2c34f4537280c27311637513f846f33913b7a4489e4d5a634e44eb0e843c13d10aec

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