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
2556	attrib.exe

Deletes itself 1 IoCs

pid	Process
2564	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2316	rwmhost.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 created	C:\Windows\Debug\rwmhost.exe	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe
File opened for modification	C:\Windows\Debug\rwmhost.exe	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe
File opened for modification	C:\Windows\Debug\rwmhost.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	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rwmhost.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	rwmhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	rwmhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2236	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2556	2236	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	30
PID 2236 wrote to memory of 2556	2236	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	30
PID 2236 wrote to memory of 2556	2236	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	30
PID 2236 wrote to memory of 2556	2236	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	30
PID 2236 wrote to memory of 2564	2236	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	33
PID 2236 wrote to memory of 2564	2236	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	33
PID 2236 wrote to memory of 2564	2236	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	33
PID 2236 wrote to memory of 2564	2236	a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe	33

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2556	attrib.exe

C:\Users\Admin\AppData\Local\Temp\a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe
"C:\Users\Admin\AppData\Local\Temp\a8708d98185364e876e7456b06182e9786a615d91040814f040cc46f18eb1c22.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\rwmhost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Views/modifies file attributes
  PID:2556
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A8708D~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2564

C:\Windows\Debug\rwmhost.exe
C:\Windows\Debug\rwmhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
PID:2316

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\rwmhost.exe

Filesize
37KB

MD5
f1fac0bf9d25ee027c81b132810ba3c1

SHA1
f8b2626a739076608192a289132543fd1ee9c02e

SHA256
7eaa7d8bf60689d6a5957f19553340a39cf65d5f835687e9f83e40c5e9db8535

SHA512
66409659b4297db4f1bb0d6006d036214bf7adc6563b3e473c0b354ce876e0bf547466d6e35365d91145736e37413bc8d65381c7d61b19e58c4c21f19e1b4f46

Download Submit
memory/2236-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2236-6-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2316-7-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2316-10-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2316-13-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2316-16-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2316-19-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads