wshrat | 0553b17fec9602ac18d015f7f9278faedc2897e7d3d5000862ed73f26b741b0f

Analysis

max time kernel
147s
max time network
150s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
29-03-2023 06:26

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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 22 IoCs

flow	pid	Process
4	1008	WScript.exe
5	1008	WScript.exe
6	1008	WScript.exe
8	1008	WScript.exe
10	1008	WScript.exe
11	1008	WScript.exe
13	1008	WScript.exe
14	1008	WScript.exe
15	1008	WScript.exe
17	1008	WScript.exe
18	1008	WScript.exe
19	1008	WScript.exe
21	1008	WScript.exe
22	1008	WScript.exe
23	1008	WScript.exe
25	1008	WScript.exe
26	1008	WScript.exe
27	1008	WScript.exe
29	1008	WScript.exe
30	1008	WScript.exe
31	1008	WScript.exe
33	1008	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
Set value (str)	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\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
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\software\microsoft\windows\currentversion\run	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:1008

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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