7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb

General

Target

7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb.exe
Size

55KB
MD5

94d100394363e198e69a0c7abd25954e
SHA1

94b173c35ec0eecdb53005f43250ac184fd3bb1d
SHA256

7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb
SHA512

36b8ce3abaab682d600e5d90a7a022d3dfd477d016c1c141f19b3cbaa2d233c81df337b71ee91c430fe4a8d82ffb5624ae972212d673451d22c6caa4c3b99f58
SSDEEP

384:+SDuuOFZyUVpULCgDb2prxVTw24iJ6Al6z+yX0f0BT2EpmuKowBpyUUep4+2yiiX:3DcZyUpULCgod/J96ayXv/pWnnAQ

Score

9^/10

evasion upx

Malware Config

Signatures

Detects Windows executables referencing non-Windows User-Agents 4 IoCs

resource	yara_rule
behavioral2/memory/4156-0-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/files/0x000a0000000233df-4.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/4792-5-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/4792-6-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/4156-0-0x0000000000400000-0x0000000000416000-memory.dmp	UPX
behavioral2/files/0x000a0000000233df-4.dat	UPX
behavioral2/memory/4792-5-0x0000000000400000-0x0000000000416000-memory.dmp	UPX
behavioral2/memory/4792-6-0x0000000000400000-0x0000000000416000-memory.dmp	UPX

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2080	attrib.exe

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-1-5-21-2080292272-204036150-2159171770-1000\Control Panel\International\Geo\Nation	7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb.exe

Executes dropped EXE 1 IoCs

pid	Process
4792	uyghost.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4156-0-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/files/0x000a0000000233df-4.dat	upx
behavioral2/memory/4792-5-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/4792-6-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\uyghost.exe	7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb.exe
File opened for modification	C:\Windows\Debug\uyghost.exe	7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb.exe
File opened for modification	C:\Windows\Debug\uyghost.exe	attrib.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	4156	7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4156 wrote to memory of 2080	4156	7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb.exe	82
PID 4156 wrote to memory of 2080	4156	7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb.exe	82
PID 4156 wrote to memory of 2080	4156	7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb.exe	82
PID 4156 wrote to memory of 2752	4156	7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb.exe	88
PID 4156 wrote to memory of 2752	4156	7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb.exe	88
PID 4156 wrote to memory of 2752	4156	7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb.exe	88

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2080	attrib.exe

C:\Users\Admin\AppData\Local\Temp\7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb.exe
"C:\Users\Admin\AppData\Local\Temp\7ed8a513c01f5c9d90d41f8a6503f009f4070bb41c87fa05d305efb2947b1bdb.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4156
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\uyghost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - Views/modifies file attributes
  PID:2080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\7ED8A5~1.EXE > nul
  2⤵
  PID:2752

C:\Windows\Debug\uyghost.exe
C:\Windows\Debug\uyghost.exe
1⤵
- Executes dropped EXE
PID:4792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

2

T1564

Hidden Files and Directories

2

T1564.001

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Debug\uyghost.exe

Filesize
55KB

MD5
f8d0146e9bed10aaf93635dfa914f0ff

SHA1
61b7870668f69222295032919b101ec0e82ab346

SHA256
a1967dba22ab0b2ec28de380bf28547e7af177360e286c9b9ad4d48fa81a38d7

SHA512
63b4e42c692274ad0d9c067520eee5a96984b6c003cb9c111f639f2c4a4707d2a39e0d67f0d516cb75ccf86ef9e35095a7691df62f24923cec196d3185c7da31

Download Submit
memory/4156-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4792-5-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4792-6-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads