a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22

General

Target

a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe
Size

37KB
MD5

8cc6010309813e21a5d39d3b02bc6e4e
SHA1

7b7c6e463d22cd449147faff042bc33d0b7e34e1
SHA256

a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22
SHA512

2ce7175ca673256fff19aa3f3eaf1311b6338ea41b67368848ae2d844d095e7dd00d7d22527d2668600cb1d63b8e982c0188013d086b93721a21936f434e3129
SSDEEP

768:LCRfCvm23OTnm7NSBTyS5qDRa7DrtlHO3333WUUUYLG+++/:WVCvmrK7NSNymqDet5bT

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
1840	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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe

Executes dropped EXE 1 IoCs

pid	Process
3024	mewhost.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\mewhost.exe	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe
File opened for modification	C:\Windows\Debug\mewhost.exe	attrib.exe
File created	C:\Windows\Debug\mewhost.exe	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.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	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mewhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

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	mewhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	mewhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2904	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 1840	2904	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	82
PID 2904 wrote to memory of 1840	2904	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	82
PID 2904 wrote to memory of 1840	2904	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	82
PID 2904 wrote to memory of 4000	2904	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	85
PID 2904 wrote to memory of 4000	2904	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	85
PID 2904 wrote to memory of 4000	2904	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	85

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1840	attrib.exe

C:\Users\Admin\AppData\Local\Temp\a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe
"C:\Users\Admin\AppData\Local\Temp\a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.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:2904
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\mewhost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Views/modifies file attributes
  PID:1840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A8708D~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4000

C:\Windows\Debug\mewhost.exe
C:\Windows\Debug\mewhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
PID:3024

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

2

T1012

System Information Discovery

3

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\mewhost.exe

Filesize
37KB

MD5
e4a4be3091243376f5bf62fd0545a599

SHA1
2488524d0da043d1e65973f7c2b945c2c79e807c

SHA256
dcda5abafc9a31ea0e60ba1da114afd575fda3d572a266293007081bc449bd57

SHA512
1f84cb40e28ed2fce328ac0b00fb1bda9b5bba1a29a73c5b62059e6b47e20a7d8184df2cf082fdf9a6432105012bed1f6314bb66a50a6f7707213e77a6b553cf

Download Submit
memory/2904-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2904-6-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3024-7-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3024-10-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3024-13-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3024-16-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3024-19-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads