wshrat | 76ba79480eb105609ad6add997a2c26a1c27e7c0eb97760f49dc8545d8f1a7d0

Analysis

max time kernel
144s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
17-08-2023 18:13

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General

Target

ORDER-023816.pdf.vbs
Size

9KB
MD5

50615b36f7a22881d8cc2938257d8064
SHA1

836cb5b89aed1b189c2d4d3c33371c29c1a406b7
SHA256

76ba79480eb105609ad6add997a2c26a1c27e7c0eb97760f49dc8545d8f1a7d0
SHA512

a7eb15724e977cd4151e4dd74a9590009f655661028e93222b933b0d121e604c7cee82ba554b09d9276cc90e8d5abb6612a3deaf7a6e79b9b6c3a1897f4549bf
SSDEEP

48:KDE9y43sbbf4KkgGewDE9y48bdZFy4KkgGewDE9y483sZzz4KkgGew8Zb43sbbfy:US1+uFR4e1e11qLPfo11qMMcOP7

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	2592	WScript.exe
8	2592	WScript.exe
10	2592	WScript.exe
25	3848	WScript.exe
31	3848	WScript.exe
32	3848	WScript.exe
33	3848	WScript.exe
36	3848	WScript.exe
47	3848	WScript.exe
48	3848	WScript.exe
49	3848	WScript.exe
50	3848	WScript.exe
51	3848	WScript.exe
54	3848	WScript.exe
55	3848	WScript.exe
59	3848	WScript.exe
60	3848	WScript.exe
61	3848	WScript.exe
62	3848	WScript.exe
63	3848	WScript.exe
64	3848	WScript.exe
65	3848	WScript.exe
66	3848	WScript.exe
67	3848	WScript.exe
71	3848	WScript.exe
73	3848	WScript.exe
74	3848	WScript.exe
75	3848	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\QWQJBP.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\QWQJBP.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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\QWQJBP = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\QWQJBP.vbs\""	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1420546310-613437930-2990200354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\QWQJBP = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\QWQJBP.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-1-5-21-1420546310-613437930-2990200354-1000_Classes\Local Settings	WScript.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2592 wrote to memory of 3848	2592	WScript.exe	81
PID 2592 wrote to memory of 3848	2592	WScript.exe	81

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ORDER-023816.pdf.vbs"
1⤵
- Blocklisted process makes network request
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2592
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\QWQJBP.vbs"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:3848

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\QWQJBP.vbs

Filesize
257KB

MD5
d87d4c42c10f332a96aa10ffb455f49d

SHA1
c6167ce4e59f14ce826a50e8d32847101e5e9dc8

SHA256
5ad4d5fb75a277e31b05e1a6f19c5fc3c007b5c2be03109d876ca457173a135a

SHA512
d01c7072b7f9e85dbc8f160f0afc17116a5ec5039a1f07a9201d517d8029acc8f31b446ccd66f832eb5ea58c3e88db88b2e442c7965e0318af32852512c3aa8a

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

Filesize
257KB

MD5
d87d4c42c10f332a96aa10ffb455f49d

SHA1
c6167ce4e59f14ce826a50e8d32847101e5e9dc8

SHA256
5ad4d5fb75a277e31b05e1a6f19c5fc3c007b5c2be03109d876ca457173a135a

SHA512
d01c7072b7f9e85dbc8f160f0afc17116a5ec5039a1f07a9201d517d8029acc8f31b446ccd66f832eb5ea58c3e88db88b2e442c7965e0318af32852512c3aa8a

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads