wshrat | 86f701c004025b36a83943d91f033e4e7c3c37f35b51f8a678db378b6be13cb0

Analysis

max time kernel
145s
max time network
148s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
20-08-2024 22:56

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

b12ecb2ee2eb06b0a5fe08f475cd68f4_JaffaCakes118.exe
Size

545KB
MD5

b12ecb2ee2eb06b0a5fe08f475cd68f4
SHA1

8fe2b060edfa5b631dc99f53ec246cba1f8dfe6d
SHA256

86f701c004025b36a83943d91f033e4e7c3c37f35b51f8a678db378b6be13cb0
SHA512

c744497ec302e702bf288f6cbefe840fd4c33336ce98d47fd1a9b1e54bed8629a3d1ddc2e0be807c0f67c2e99c473064da56ac9c2e41d3630f29fa2ec4d10277
SSDEEP

12288:aB3IZiz2SIXH6xR/phKPt8cjM9whepUoDem/YBStirFrLO2ieRbFk9ZtKVQ3Oqb5:cIBcsehEiTK8

Score

10^/10

wshrat discovery persistence trojan

Malware Config

Signatures

WSHRAT
WSHRAT is a variant of Houdini worm and has vbs and js variants.
trojan wshrat

WSHRAT payload 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000122db-3.dat	family_wshrat

Blocklisted process makes network request 8 IoCs

flow	pid	Process
5	2868	wscript.exe
6	2868	wscript.exe
7	2868	wscript.exe
8	2868	wscript.exe
9	2868	wscript.exe
10	2868	wscript.exe
11	2868	wscript.exe
13	2868	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DXTwt.vbs	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DXTwt.vbs	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\DXTwt = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\DXTwt.vbs\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DXTwt = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\DXTwt.vbs\""	wscript.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

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 2 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	b12ecb2ee2eb06b0a5fe08f475cd68f4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2468 wrote to memory of 2868	2468	b12ecb2ee2eb06b0a5fe08f475cd68f4_JaffaCakes118.exe	31
PID 2468 wrote to memory of 2868	2468	b12ecb2ee2eb06b0a5fe08f475cd68f4_JaffaCakes118.exe	31
PID 2468 wrote to memory of 2868	2468	b12ecb2ee2eb06b0a5fe08f475cd68f4_JaffaCakes118.exe	31
PID 2468 wrote to memory of 2868	2468	b12ecb2ee2eb06b0a5fe08f475cd68f4_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\b12ecb2ee2eb06b0a5fe08f475cd68f4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b12ecb2ee2eb06b0a5fe08f475cd68f4_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2468
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\System32\wscript.exe" "C:\Users\Admin\AppData\Roaming\DXTwt.vbs"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:2868

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\DXTwt.vbs

Filesize
180KB

MD5
6ad38f0acd4a81078962283547ab3282

SHA1
743a4cf3ac300e6f4d3c9f9e30316a892b7657a6

SHA256
812adc7aaf76c3ccb50da9bb8e3552246aa09cb26186a6dfc205ea71878548c5

SHA512
daed0e1784ec7afbef173b93fa6a174c09ba53099abcbd8fd438c4c64dfde0a0bed22d4180842074a9d0e0e3464a76dba42a11bce8560a17f7f827f5f91ba69d

Download Submit
memory/2468-0-0x0000000074CFE000-0x0000000074CFF000-memory.dmp

Filesize
4KB

Download
memory/2468-1-0x0000000000FC0000-0x000000000104E000-memory.dmp

Filesize
568KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads