df1afc01e6a11a84b3b2ef68699b2d595706b2be99a2d74ce74183d557bca850

Analysis

max time kernel
147s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
13/10/2023, 22:19

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General

Target

df1afc01e6a11a84b3b2ef68699b2d595706b2be99a2d74ce74183d557bca850.exe
Size

198KB
MD5

4ca8b84594831aafaddc5857acdc2aaf
SHA1

a84382add2921689e47af4b3cd322047e6718d92
SHA256

df1afc01e6a11a84b3b2ef68699b2d595706b2be99a2d74ce74183d557bca850
SHA512

fc97d8ac81ca8121304f5251003582065b5b5edc6fa6e9d732434c2185ddeb457a8295a0dc676047f84a3449deaddfbc9903cc363cba17a51d6092628cda55d5
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCO3:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXO

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1926387074-3400613176-3566796709-1000\Control Panel\International\Geo\Nation	df1afc01e6a11a84b3b2ef68699b2d595706b2be99a2d74ce74183d557bca850.exe

Executes dropped EXE 1 IoCs

pid	Process
1716	yyghost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\yyghost.exe	df1afc01e6a11a84b3b2ef68699b2d595706b2be99a2d74ce74183d557bca850.exe
File opened for modification	C:\Windows\Debug\yyghost.exe	df1afc01e6a11a84b3b2ef68699b2d595706b2be99a2d74ce74183d557bca850.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	yyghost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	yyghost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3548	df1afc01e6a11a84b3b2ef68699b2d595706b2be99a2d74ce74183d557bca850.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3548 wrote to memory of 3664	3548	df1afc01e6a11a84b3b2ef68699b2d595706b2be99a2d74ce74183d557bca850.exe	87
PID 3548 wrote to memory of 3664	3548	df1afc01e6a11a84b3b2ef68699b2d595706b2be99a2d74ce74183d557bca850.exe	87
PID 3548 wrote to memory of 3664	3548	df1afc01e6a11a84b3b2ef68699b2d595706b2be99a2d74ce74183d557bca850.exe	87

C:\Users\Admin\AppData\Local\Temp\df1afc01e6a11a84b3b2ef68699b2d595706b2be99a2d74ce74183d557bca850.exe
"C:\Users\Admin\AppData\Local\Temp\df1afc01e6a11a84b3b2ef68699b2d595706b2be99a2d74ce74183d557bca850.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3548
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\DF1AFC~1.EXE > nul
  2⤵
  PID:3664

C:\Windows\Debug\yyghost.exe
C:\Windows\Debug\yyghost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1716

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

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Downloads

C:\Windows\Debug\yyghost.exe

Filesize
198KB

MD5
ee2b13ae7b24bed7f47a11067932a4f7

SHA1
90ad437c7c87e68dc709774a5d318846b564188c

SHA256
a62a0f91e4dc318f4e280f82c246beb6799b20828b4ffcd716039286237e114c

SHA512
3af58f2a9d11d2f8479a7cde42aa826547e8c0a473cc745b5207846dcd5bd3d9fa9f0fb1a823efabdc529e60596111b4fb64e0d3e0310c701fbc94ebf4542d0e

Download Submit
C:\Windows\debug\yyghost.exe

Filesize
198KB

MD5
ee2b13ae7b24bed7f47a11067932a4f7

SHA1
90ad437c7c87e68dc709774a5d318846b564188c

SHA256
a62a0f91e4dc318f4e280f82c246beb6799b20828b4ffcd716039286237e114c

SHA512
3af58f2a9d11d2f8479a7cde42aa826547e8c0a473cc745b5207846dcd5bd3d9fa9f0fb1a823efabdc529e60596111b4fb64e0d3e0310c701fbc94ebf4542d0e

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads