wshrat | 48bc766326068e078cf258dea70d49dcce265e4e6dbf18f1a0ce28d310f6a89a

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
02/09/2023, 11:08

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General

Target
48bc766326068e078cf258dea70d49dcce265e4e6dbf18f1a0ce28d310f6a89a_JC.js
Size 7KB
Sample230902-m8zn2sce44
SHA256 48bc766326068e078cf258dea70d49dcce265e4e6dbf18f1a0ce28d310f6a89a
MD5 e6345728433a16afa4f7a0d51341aa92
SHA1 b9d2abb57a98cc815feec3b09a213ef0917c54e6
SHA512 dda5942e836b848f85d62b0dd37bdf453e4e46133d59b4267a947ad9005dcaa958e9b635fad4da1e913c5b6481aec0860d7a7971defb671290c6a1c1bb5e8b33
SSDEEP 96:BxIeyahwb8yHBmtQ+VUVQVPvVNVdVLmhHoi:/F7Pu+myBHzg
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wshrat persistence trojan

Malware Config

Extracted

Family

wshrat

http://chongmei33.publicvm.com:7045

Signatures

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

Blocklisted process makes network request 28 IoCs

flow	pid	Process
4	4900	wscript.exe
9	4900	wscript.exe
13	4900	wscript.exe
15	4900	wscript.exe
38	1724	WScript.exe
40	1724	WScript.exe
41	1724	WScript.exe
42	1724	WScript.exe
55	1724	WScript.exe
57	1724	WScript.exe
58	1724	WScript.exe
59	1724	WScript.exe
60	1724	WScript.exe
65	1724	WScript.exe
69	1724	WScript.exe
70	1724	WScript.exe
71	1724	WScript.exe
72	1724	WScript.exe
74	1724	WScript.exe
75	1724	WScript.exe
76	1724	WScript.exe
77	1724	WScript.exe
78	1724	WScript.exe
82	1724	WScript.exe
83	1724	WScript.exe
85	1724	WScript.exe
86	1724	WScript.exe
88	1724	WScript.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-1-5-21-2415528079-3794552930-4264847036-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\JGWJBL.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\JGWJBL.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-1-5-21-2415528079-3794552930-4264847036-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\JGWJBL = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\JGWJBL.vbs\""	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\JGWJBL = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\JGWJBL.vbs\""	WScript.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2415528079-3794552930-4264847036-1000_Classes\Local Settings	wscript.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4900 wrote to memory of 1724	4900	wscript.exe	86
PID 4900 wrote to memory of 1724	4900	wscript.exe	86

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\48bc766326068e078cf258dea70d49dcce265e4e6dbf18f1a0ce28d310f6a89a_JC.js
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4900
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\JGWJBL.vbs"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:1724

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

JGWJBL.vbs

Path C:\Users\Admin\AppData\Local\Temp\JGWJBL.vbs
Size 231KB
SHA256 7384901adc43848e36b00b3a5bd4a1c9743533d81e4fc33f8bcdec0e8e9a0077
MD5 788d9b6fd542ea9680d7fd61e3424aec
SHA1 eb4929d2f663fa2bdf3ce6265c85036f4aa88e41
SHA512 81ff571735f6c09ec06fa09e8174ce8bc6907eb0f786296f53d6147a0998014a5c2336700d7d01abada1000ba2dfeeeabae2b626cdcee0851d1c5433f6f5a94d
SSDEEP 384:9uZ8qcLILoneu0BQVfoes0R1rTuDwPMW5RxDCOzAg0Y2gD2GBm843E4LnLuVSou2:9uZ8jdrVSRJc
MD5 SHA1 SHA512 SSDEEP

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JGWJBL.vbs

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\JGWJBL.vbs
Size 231KB
SHA256 7384901adc43848e36b00b3a5bd4a1c9743533d81e4fc33f8bcdec0e8e9a0077
MD5 788d9b6fd542ea9680d7fd61e3424aec
SHA1 eb4929d2f663fa2bdf3ce6265c85036f4aa88e41
SHA512 81ff571735f6c09ec06fa09e8174ce8bc6907eb0f786296f53d6147a0998014a5c2336700d7d01abada1000ba2dfeeeabae2b626cdcee0851d1c5433f6f5a94d
SSDEEP 384:9uZ8qcLILoneu0BQVfoes0R1rTuDwPMW5RxDCOzAg0Y2gD2GBm843E4LnLuVSou2:9uZ8jdrVSRJc
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads