wshrat | 0553b17fec9602ac18d015f7f9278faedc2897e7d3d5000862ed73f26b741b0f

Analysis

max time kernel
146s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
29-03-2023 06:04

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General

Target

ORDER28033.xls.vbs
Size

234KB
MD5

ca001aafd820f9bfa17f8449f920ef6c
SHA1

bf11ec3800446dd070575a05a6eee335ca4102a6
SHA256

0553b17fec9602ac18d015f7f9278faedc2897e7d3d5000862ed73f26b741b0f
SHA512

7efa3e5e38158921a997370131988cce1addb11ede472a311a3ea9a724844994a98e5c5f12ecce51863ba36ff6696e0c5c0ceb9879eaf9948fa0f92ca94026da
SSDEEP

768:ryx8QibbbAtQjG3+K3ElKBEjfTRUXxSDoy7ZCoCIL5fBJfdfY:61

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 25 IoCs

flow	pid	Process
13	1636	WScript.exe
16	1636	WScript.exe
23	1636	WScript.exe
24	1636	WScript.exe
26	1636	WScript.exe
35	1636	WScript.exe
36	1636	WScript.exe
37	1636	WScript.exe
41	1636	WScript.exe
42	1636	WScript.exe
44	1636	WScript.exe
45	1636	WScript.exe
46	1636	WScript.exe
47	1636	WScript.exe
49	1636	WScript.exe
50	1636	WScript.exe
51	1636	WScript.exe
52	1636	WScript.exe
53	1636	WScript.exe
54	1636	WScript.exe
55	1636	WScript.exe
56	1636	WScript.exe
57	1636	WScript.exe
58	1636	WScript.exe
59	1636	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ORDER28033.xls.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ORDER28033.xls.vbs	WScript.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\software\microsoft\windows\currentversion\run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ORDER28033 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\ORDER28033.xls.vbs\""	WScript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ORDER28033 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\ORDER28033.xls.vbs\""	WScript.exe

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

System Information Discovery
T1082

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ORDER28033.xls.vbs"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1636

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ORDER28033.xls.vbs

Filesize
234KB

MD5
ca001aafd820f9bfa17f8449f920ef6c

SHA1
bf11ec3800446dd070575a05a6eee335ca4102a6

SHA256
0553b17fec9602ac18d015f7f9278faedc2897e7d3d5000862ed73f26b741b0f

SHA512
7efa3e5e38158921a997370131988cce1addb11ede472a311a3ea9a724844994a98e5c5f12ecce51863ba36ff6696e0c5c0ceb9879eaf9948fa0f92ca94026da

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