wshrat | b6c3470de534cbaee5c02142a41970c83dce64f83922826c7a916520332d318a

Analysis

max time kernel
298s
max time network
297s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-10-2024 03:11

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General

Target

ORDER-241091799.PDF.js
Size

7KB
MD5

e1daa8253602476d0ddd51e91e406a1a
SHA1

10b0e9306019e58356a38074e609da3040da6641
SHA256

4126a6f8a65fdb58a76b7af70974711560c58943c16466666cd8099ba2d117ac
SHA512

70687606118a4599da950600ef7529c9c941c1ce524104512c8e3c852d1f81ab40710c1f4df6f4e3f95da01e8da9c2f35d6658f706667b55c4d4a817d32e7c3c
SSDEEP

96:BmbAkRJ1vz3bYLEGU37ybeCwLHtYFCbvA:BmbAkRJ1vTbYLEGo7ybeCwLHmFCbvA

Score

10^/10

wshrat execution persistence trojan

Malware Config

Extracted

Family

wshrat

http://chongmei33.publicvm.com:7044

Signatures

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

Blocklisted process makes network request 54 IoCs

flow	pid	Process
4	1364	wscript.exe
7	1888	wscript.exe
8	1888	wscript.exe
9	1888	wscript.exe
11	1888	wscript.exe
12	1888	wscript.exe
13	1888	wscript.exe
15	1888	wscript.exe
16	1888	wscript.exe
17	1888	wscript.exe
18	1888	wscript.exe
19	1888	wscript.exe
20	1888	wscript.exe
21	1888	wscript.exe
22	1888	wscript.exe
24	1888	wscript.exe
25	1888	wscript.exe
26	1888	wscript.exe
28	1888	wscript.exe
29	1888	wscript.exe
30	1888	wscript.exe
32	1888	wscript.exe
33	1888	wscript.exe
34	1888	wscript.exe
36	1888	wscript.exe
37	1888	wscript.exe
38	1888	wscript.exe
40	1888	wscript.exe
41	1888	wscript.exe
42	1888	wscript.exe
44	1888	wscript.exe
45	1888	wscript.exe
46	1888	wscript.exe
48	1888	wscript.exe
49	1888	wscript.exe
50	1888	wscript.exe
52	1888	wscript.exe
53	1888	wscript.exe
54	1888	wscript.exe
56	1888	wscript.exe
57	1888	wscript.exe
58	1888	wscript.exe
60	1888	wscript.exe
61	1888	wscript.exe
62	1888	wscript.exe
64	1888	wscript.exe
65	1888	wscript.exe
66	1888	wscript.exe
68	1888	wscript.exe
69	1888	wscript.exe
70	1888	wscript.exe
72	1888	wscript.exe
73	1888	wscript.exe
74	1888	wscript.exe

Drops startup file 2 IoCs

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

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEWZOM = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\SEWZOM.vbs\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEWZOM = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\SEWZOM.vbs\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEWZOM = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\SEWZOM.vbs\""	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEWZOM = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\SEWZOM.vbs\""	WScript.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1364 wrote to memory of 2972	1364	wscript.exe	29
PID 1364 wrote to memory of 2972	1364	wscript.exe	29
PID 1364 wrote to memory of 2972	1364	wscript.exe	29
PID 2972 wrote to memory of 1888	2972	WScript.exe	30
PID 2972 wrote to memory of 1888	2972	WScript.exe	30
PID 2972 wrote to memory of 1888	2972	WScript.exe	30

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\ORDER-241091799.PDF.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1364
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\SEWZOM.vbs"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2972
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\SEWZOM.vbs"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    - Adds Run key to start application
    PID:1888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

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\SEWZOM.vbs

Filesize
238KB

MD5
210c243e3ae3e8cdcf28caad58547c96

SHA1
0a5811eb25bd8dbe548f7ff819e2e50e2f8c897a

SHA256
c80ad15e2f164e7eaeaacb50dbe50fd5176fa0068e669b225fdcdbcf35fc16ea

SHA512
ccdd3767e0f5ba936991a42706ccd7e5af808f4deebde75427634d2c847ce5f228da38bdc4a8b76ad1fc5498b5eedda393ce5fec92462ba74e62b6d30eaf1d99

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

Filesize
238KB

MD5
80bbae9a7841c94196fb63ab95e86791

SHA1
f42ecf1db7b7f7d1ddfd0d751b638bb4ade946b1

SHA256
ab4462c34ecbdfaa35db749fd8e19c6d50601df5b3937eb0da37667b4118218b

SHA512
0af0104d6fd927d1a3637a59a559394e891f463f7cf74aa302d8c4825449fb6384099f457fd44afa4a4ac6544c482ec7f61dfb33c21e91b2ce2feea77ae21513

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads