vjw0rm | 7e99192187bcad849b96bc9cd69254a2e68fef8ad1c73df7a410ba90ef2b898a

General

Target

Quote.js
Size

333KB
MD5

975684a4e4f41819184343aad1824ed8
SHA1

3292e50015630dc896151bafb32049a6521f062d
SHA256

7e99192187bcad849b96bc9cd69254a2e68fef8ad1c73df7a410ba90ef2b898a
SHA512

3c1ebcd24d0305e1685015acf61744f8c8766154309955899309f7bdb7e6c82004201e554aa6f59a68d5c208391478022d4192f8c05631bea64c3e252b26cf11

Score

10^/10

vjw0rm xloader loader persistence rat spyware stealer suricata trojan worm

Malware Config

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Xloader Payload 6 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\bin.exe	xloader
C:\Users\Admin\AppData\Local\Temp\bin.exe	xloader
behavioral2/memory/4512-140-0x0000000000ED0000-0x0000000000EFD000-memory.dmp	xloader
behavioral2/memory/4512-144-0x0000000000ED0000-0x0000000000EFD000-memory.dmp	xloader
C:\Program Files (x86)\Ok8d0fr7x\fz04jr5p_fit5ft.exe	xloader
C:\Program Files (x86)\Ok8d0fr7x\fz04jr5p_fit5ft.exe	xloader

Blocklisted process makes network request 6 IoCs

Processes:

wscript.exe

flow pid process

6 4488 wscript.exe
22 4488 wscript.exe
49 4488 wscript.exe
62 4488 wscript.exe
82 4488 wscript.exe
99 4488 wscript.exe
Executes dropped EXE 2 IoCs

Processes:

bin.exefz04jr5p_fit5ft.exe

pid process

4568 bin.exe
4524 fz04jr5p_fit5ft.exe

flow	pid	process
6	4488	wscript.exe
22	4488	wscript.exe
49	4488	wscript.exe
62	4488	wscript.exe
82	4488	wscript.exe
99	4488	wscript.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

wscript.exebin.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	bin.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jmKZSbFFzi.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jmKZSbFFzi.js	wscript.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.execmstp.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\jmKZSbFFzi.js\""	wscript.exe
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	cmstp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\TBPPRBMX = "C:\\Program Files (x86)\\Ok8d0fr7x\\fz04jr5p_fit5ft.exe"	cmstp.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

bin.execmstp.exe

description	pid	process	target process
PID 4568 set thread context of 1060	4568	bin.exe	Explorer.EXE
PID 4512 set thread context of 1060	4512	cmstp.exe	Explorer.EXE

Drops file in Program Files directory 4 IoCs

Processes:

Explorer.EXEcmstp.exe

description	ioc	process
File created	C:\Program Files (x86)\Ok8d0fr7x\fz04jr5p_fit5ft.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Ok8d0fr7x\fz04jr5p_fit5ft.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Ok8d0fr7x\fz04jr5p_fit5ft.exe	cmstp.exe
File opened for modification	C:\Program Files (x86)\Ok8d0fr7x	Explorer.EXE

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmstp.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmstp.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

Processes:

bin.execmstp.exefz04jr5p_fit5ft.exe

pid	process
4568	bin.exe
4568	bin.exe
4568	bin.exe
4568	bin.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4524	fz04jr5p_fit5ft.exe
4524	fz04jr5p_fit5ft.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe
4512	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1060 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

bin.execmstp.exe

pid process

4568 bin.exe
4568 bin.exe
4568 bin.exe
4512 cmstp.exe
4512 cmstp.exe
4512 cmstp.exe
4512 cmstp.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

bin.execmstp.exefz04jr5p_fit5ft.exe

description pid process

Token: SeDebugPrivilege 4568 bin.exe
Token: SeDebugPrivilege 4512 cmstp.exe
Token: SeDebugPrivilege 4524 fz04jr5p_fit5ft.exe

pid	process
1060	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	4568	bin.exe
Token: SeDebugPrivilege	4512	cmstp.exe
Token: SeDebugPrivilege	4524	fz04jr5p_fit5ft.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

wscript.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 4104 wrote to memory of 4488	4104	wscript.exe	wscript.exe
PID 4104 wrote to memory of 4488	4104	wscript.exe	wscript.exe
PID 4104 wrote to memory of 4568	4104	wscript.exe	bin.exe
PID 4104 wrote to memory of 4568	4104	wscript.exe	bin.exe
PID 4104 wrote to memory of 4568	4104	wscript.exe	bin.exe
PID 1060 wrote to memory of 4512	1060	Explorer.EXE	cmstp.exe
PID 1060 wrote to memory of 4512	1060	Explorer.EXE	cmstp.exe
PID 1060 wrote to memory of 4512	1060	Explorer.EXE	cmstp.exe
PID 4512 wrote to memory of 3972	4512	cmstp.exe	cmd.exe
PID 4512 wrote to memory of 3972	4512	cmstp.exe	cmd.exe
PID 4512 wrote to memory of 3972	4512	cmstp.exe	cmd.exe
PID 4512 wrote to memory of 3736	4512	cmstp.exe	cmd.exe
PID 4512 wrote to memory of 3736	4512	cmstp.exe	cmd.exe
PID 4512 wrote to memory of 3736	4512	cmstp.exe	cmd.exe
PID 4512 wrote to memory of 5076	4512	cmstp.exe	cmd.exe
PID 4512 wrote to memory of 5076	4512	cmstp.exe	cmd.exe
PID 4512 wrote to memory of 5076	4512	cmstp.exe	cmd.exe
PID 4512 wrote to memory of 868	4512	cmstp.exe	Firefox.exe
PID 4512 wrote to memory of 868	4512	cmstp.exe	Firefox.exe
PID 4512 wrote to memory of 868	4512	cmstp.exe	Firefox.exe
PID 1060 wrote to memory of 4524	1060	Explorer.EXE	fz04jr5p_fit5ft.exe
PID 1060 wrote to memory of 4524	1060	Explorer.EXE	fz04jr5p_fit5ft.exe
PID 1060 wrote to memory of 4524	1060	Explorer.EXE	fz04jr5p_fit5ft.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1060
- C:\Windows\system32\wscript.exe
  wscript.exe C:\Users\Admin\AppData\Local\Temp\Quote.js
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:4104
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\jmKZSbFFzi.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    - Adds Run key to start application
    PID:4488
- - C:\Users\Admin\AppData\Local\Temp\bin.exe
    "C:\Users\Admin\AppData\Local\Temp\bin.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4568
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4512
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\bin.exe"
    3⤵
    PID:3972
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    PID:3736
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    PID:5076
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:868
- C:\Program Files (x86)\Ok8d0fr7x\fz04jr5p_fit5ft.exe
  "C:\Program Files (x86)\Ok8d0fr7x\fz04jr5p_fit5ft.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4524

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Ok8d0fr7x\fz04jr5p_fit5ft.exe

Filesize
177KB

MD5
325e9bc40c665d845e9edd875631ec48

SHA1
6f325ce61e9d8916cced15919cbd84fce584e14f

SHA256
c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5

SHA512
02760fc7cd93075f8fdb35e0a87dfee062c718fe03a28408da6a03d37eb6e39a3388c0c01611cee8d28422b930346c92f4242538a29daa8ad0a3b5cdf8d69dc4

Download Submit
C:\Program Files (x86)\Ok8d0fr7x\fz04jr5p_fit5ft.exe

Filesize
177KB

MD5
325e9bc40c665d845e9edd875631ec48

SHA1
6f325ce61e9d8916cced15919cbd84fce584e14f

SHA256
c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5

SHA512
02760fc7cd93075f8fdb35e0a87dfee062c718fe03a28408da6a03d37eb6e39a3388c0c01611cee8d28422b930346c92f4242538a29daa8ad0a3b5cdf8d69dc4

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1

Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1

Filesize
48KB

MD5
349e6eb110e34a08924d92f6b334801d

SHA1
bdfb289daff51890cc71697b6322aa4b35ec9169

SHA256
c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

SHA512
2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

Download Submit
C:\Users\Admin\AppData\Local\Temp\bin.exe

Filesize
177KB

MD5
325e9bc40c665d845e9edd875631ec48

SHA1
6f325ce61e9d8916cced15919cbd84fce584e14f

SHA256
c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5

SHA512
02760fc7cd93075f8fdb35e0a87dfee062c718fe03a28408da6a03d37eb6e39a3388c0c01611cee8d28422b930346c92f4242538a29daa8ad0a3b5cdf8d69dc4

Download Submit
C:\Users\Admin\AppData\Local\Temp\bin.exe

Filesize
177KB

MD5
325e9bc40c665d845e9edd875631ec48

SHA1
6f325ce61e9d8916cced15919cbd84fce584e14f

SHA256
c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5

SHA512
02760fc7cd93075f8fdb35e0a87dfee062c718fe03a28408da6a03d37eb6e39a3388c0c01611cee8d28422b930346c92f4242538a29daa8ad0a3b5cdf8d69dc4

Download Submit
C:\Users\Admin\AppData\Roaming\jmKZSbFFzi.js

Filesize
5KB

MD5
9863c73f15497e207b6cc2bb6a6b478f

SHA1
4c6fb94ac90f82ed1597b49ff325bf3f4ab57f1e

SHA256
412723906aba11c0c59dd6c68ae931cfa576d0ca669679b23d16769b82a1a81d

SHA512
aed1e675dd8c2a4b95d437862f074675bd2fc8eea1ab99dc9075fecda41bdc394288eb72ab9a1f34877313ae0dd6003c2c868a17187c59c76f0fd8d6037a7ccc

Download Submit
memory/1060-145-0x0000000007CC0000-0x0000000007DF4000-memory.dmp

Filesize
1.2MB

Download
memory/1060-137-0x0000000002C50000-0x0000000002D0E000-memory.dmp

Filesize
760KB

Download
memory/1060-146-0x0000000007CC0000-0x0000000007DF4000-memory.dmp

Filesize
1.2MB

Download
memory/3736-147-0x0000000000000000-mapping.dmp

Download
memory/3972-141-0x0000000000000000-mapping.dmp

Download
memory/4488-130-0x0000000000000000-mapping.dmp

Download
memory/4512-142-0x0000000002D60000-0x00000000030AA000-memory.dmp

Filesize
3.3MB

Download
memory/4512-144-0x0000000000ED0000-0x0000000000EFD000-memory.dmp

Filesize
180KB

Download
memory/4512-143-0x0000000002BC0000-0x0000000002C50000-memory.dmp

Filesize
576KB

Download
memory/4512-140-0x0000000000ED0000-0x0000000000EFD000-memory.dmp

Filesize
180KB

Download
memory/4512-139-0x00000000009B0000-0x00000000009C6000-memory.dmp

Filesize
88KB

Download
memory/4512-138-0x0000000000000000-mapping.dmp

Download
memory/4524-151-0x0000000000000000-mapping.dmp

Download
memory/4524-154-0x0000000000C30000-0x0000000000F7A000-memory.dmp

Filesize
3.3MB

Download
memory/4568-136-0x0000000000AE0000-0x0000000000AF1000-memory.dmp

Filesize
68KB

Download
memory/4568-135-0x0000000000B90000-0x0000000000EDA000-memory.dmp

Filesize
3.3MB

Download
memory/4568-132-0x0000000000000000-mapping.dmp

Download
memory/5076-149-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads