76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d

General

Target

76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe
Size

16KB
MD5

17de0dcd9b69840117924228c8716e69
SHA1

049e399addd01c334679f52c284538fab08b4b7e
SHA256

76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d
SHA512

a94aba131467d9598b18f101cce4ef4902f22984608c2687bf8a00a60bcc12d8fb964ddd55afa92dfb864109984662671cd2ca3d5a7c470edef230260f2283e9
SSDEEP

384:IO3qdXlIQV0YXd45xuYiMcRWnPbeVGWLjZ:IO3EVdV0YXd4DuicNV3fZ

Score

8^/10

defense_evasion discovery evasion upx

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
4736	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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe

Executes dropped EXE 1 IoCs

pid	Process
2704	wmahost.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1936-0-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/files/0x0008000000023445-4.dat	upx
behavioral2/memory/1936-5-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2704-6-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2704-9-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2704-12-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2704-15-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2704-18-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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 created	C:\Windows\Debug\wmahost.exe	76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe
File opened for modification	C:\Windows\Debug\wmahost.exe	76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe
File opened for modification	C:\Windows\Debug\wmahost.exe	attrib.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	76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmahost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1936	76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 4736	1936	76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe	84
PID 1936 wrote to memory of 4736	1936	76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe	84
PID 1936 wrote to memory of 4736	1936	76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe	84
PID 1936 wrote to memory of 4012	1936	76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe	92
PID 1936 wrote to memory of 4012	1936	76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe	92
PID 1936 wrote to memory of 4012	1936	76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe	92

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4736	attrib.exe

C:\Users\Admin\AppData\Local\Temp\76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe
"C:\Users\Admin\AppData\Local\Temp\76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\wmahost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Views/modifies file attributes
  PID:4736
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\76D66C~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4012

C:\Windows\Debug\wmahost.exe
C:\Windows\Debug\wmahost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2704

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

Query Registry

1

T1012

System Information Discovery

2

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\wmahost.exe

Filesize
16KB

MD5
24a9e4d25ded89003f7c4c21c25e6525

SHA1
17c6cf100882ec943e00acdbf128eeda6add7c60

SHA256
7ad4292caefdb321a0fe2de0a99383a2998b86419782a299dee1206d9d24f160

SHA512
f4e490c1efcea216482ae3d6f7457afa5da0e63b36f7f59e1a0fc11e10a2eebd21b0973660697cfb5205431b8cad36c1a85c697ed554ca95002d23f3e9b6a7b2

Download Submit
memory/1936-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1936-5-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2704-6-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2704-9-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2704-12-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2704-15-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2704-18-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads