ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529c

General

Target

ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe
Size

70KB
MD5

0a276906e87287e21f3b3e3e571cd440
SHA1

a540a45119fa41087e86df45e83e2d9b5c38f0d2
SHA256

ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529c
SHA512

fd94db5c52d85f62b00304dfba17157214a34a43ea887299a671c96bcdeb6c7a918c246e47f20b01c9017bd063240cda386d29945ba7b0c4e9c31697c70773a2
SSDEEP

768:urItKyw5WHXfQmjIiIk9ecAaHSHMb96FyXRDLdXDffff3lkkkmZ:ur3Z5IfQmv81ayo2yXpZX7

Score

8^/10

defense_evasion discovery evasion

Malware Config

Signatures

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
1984	attrib.exe

Deletes itself 1 IoCs

pid	Process
2004	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2040	zskhost.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\zskhost.exe	attrib.exe
File created	C:\Windows\Debug\zskhost.exe	ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe
File opened for modification	C:\Windows\Debug\zskhost.exe	ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zskhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	548	ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 548 wrote to memory of 1984	548	ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe	31
PID 548 wrote to memory of 1984	548	ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe	31
PID 548 wrote to memory of 1984	548	ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe	31
PID 548 wrote to memory of 1984	548	ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe	31
PID 548 wrote to memory of 2004	548	ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe	34
PID 548 wrote to memory of 2004	548	ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe	34
PID 548 wrote to memory of 2004	548	ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe	34
PID 548 wrote to memory of 2004	548	ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe	34

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1984	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe
"C:\Users\Admin\AppData\Local\Temp\ee1694dcb21a029561c04a4af41c81c86050a4052c9de0cb857a27c203a2529cN.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:548
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\zskhost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Views/modifies file attributes
  PID:1984
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\EE1694~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2004

C:\Windows\Debug\zskhost.exe
C:\Windows\Debug\zskhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2040

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

Indicator Removal

1

T1070

File Deletion

1

T1070.004

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Debug\zskhost.exe

Filesize
70KB

MD5
e02a8508bff2af4388af5caee0dd7986

SHA1
1f928ee083a3f90e05ace12801cca9b301f5c2d9

SHA256
af7c80db8ceae9199301e86580d2b990bb2dde08888e36301cb735e8365e296a

SHA512
f43572707a06ce5edce97a7ebad7bf3f3b63baf20063e4dc95d26ded5e48911356494c23284c5567b165ffb0fb262a6b631dc186ed18ca3c787461e6f1eee46a

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads