vjw0rm | 47ac55851c62e30f0553a5d32f2b6a128f532b9904fbf5e100b53895ec8a86ca

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
09/10/2023, 04:41

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General

Target
swift copy.PDF.js
Size 453KB
Sample231009-fa4f1sce66
SHA256 47ac55851c62e30f0553a5d32f2b6a128f532b9904fbf5e100b53895ec8a86ca
MD5 811a102d237ae380b2d9517fa79f2c6d
SHA1 17ff05d6c71c7c3f27be24cfd46b9653de9f67f2
SHA512 3fcd5e98e5dbe0fb529ca77592bc012bc8560173114dfa754d363fe621b9336485a74fa48bd8bca4f676bfc91c2dc8ad5bc69c9a3b275b02722ec4e932688680
SSDEEP 6144:N5gPKUmu6hIe4UhL60X4dOvNJ38QJfJiDzh8qQESvpWvnR4Rt1Prz2fLFh2WR:N56fmu6mUhZVJ1J8DnRvAtlf2
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

vjw0rm trojan worm

Malware Config

Extracted

Family

vjw0rm

http://jemyy.theworkpc.com:5401

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	2440	wscript.exe
36	2440	wscript.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
1752	bin.exe

Loads dropped DLL 1 IoCs

pid	Process
2816	ktmutil.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1752 set thread context of 1192	1752	bin.exe	10
PID 1752 set thread context of 2816	1752	bin.exe	32
PID 2816 set thread context of 1192	2816	ktmutil.exe	10

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2180306848-1874213455-4093218721-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	ktmutil.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1752	bin.exe
1752	bin.exe
1752	bin.exe
1752	bin.exe
1752	bin.exe
1752	bin.exe
1752	bin.exe
1752	bin.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1192	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1752	bin.exe
1192	Explorer.EXE
1192	Explorer.EXE
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe
2816	ktmutil.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2828 wrote to memory of 2440	2828	wscript.exe	28
PID 2828 wrote to memory of 2440	2828	wscript.exe	28
PID 2828 wrote to memory of 2440	2828	wscript.exe	28
PID 2828 wrote to memory of 1752	2828	wscript.exe	29
PID 2828 wrote to memory of 1752	2828	wscript.exe	29
PID 2828 wrote to memory of 1752	2828	wscript.exe	29
PID 2828 wrote to memory of 1752	2828	wscript.exe	29
PID 1192 wrote to memory of 2816	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2816	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2816	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2816	1192	Explorer.EXE	32
PID 2816 wrote to memory of 860	2816	ktmutil.exe	36
PID 2816 wrote to memory of 860	2816	ktmutil.exe	36
PID 2816 wrote to memory of 860	2816	ktmutil.exe	36
PID 2816 wrote to memory of 860	2816	ktmutil.exe	36
PID 2816 wrote to memory of 860	2816	ktmutil.exe	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Windows\system32\wscript.exe
  wscript.exe "C:\Users\Admin\AppData\Local\Temp\swift copy.PDF.js"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2828
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\ECqEVMhpHV.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    PID:2440
- - C:\Users\Admin\AppData\Roaming\bin.exe
    "C:\Users\Admin\AppData\Roaming\bin.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    PID:1752
- C:\Windows\SysWOW64\ktmutil.exe
  "C:\Windows\SysWOW64\ktmutil.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2816
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

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

wteta.zip

Path C:\Users\Admin\AppData\Local\Temp\wteta.zip
Size 474KB
SHA256 e028068b067e5e60fa5680b0bafa48a31287b6d614ee0b92df51cce23b974099
MD5 af10a982a2ef91c9787106eea1a0cc4a
SHA1 00435a36f5e6059287cde2cebb2882669cdba3a5
SHA512 73d0d3034405527798b854dc33fc608c7ccf0af1689e139af4bbb5a5324dc0748bdc2bf632468745920dc7be4eb7f0240d3cf1b5872d3f5c0c897725db78bf9f
SSDEEP 12288:EKlJSZA7zQtl7IZyBgByo77WNMzTSZJVahsC:roZKzQtl7IZyqBy278pJVahsC
MD5 SHA1 SHA512 SSDEEP

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ECqEVMhpHV.js

Path C:\Users\Admin\AppData\Roaming\ECqEVMhpHV.js
Size 7KB
SHA256 1d15ca695084184b5e58a8ea3776bb5c8d2972c1d22d8ba0ded53b00bae8807b
MD5 d7f1bd09dc54cdb298d18b01c350daad
SHA1 14389215c04486782b191d7e717604d47b4855f5
SHA512 4fc09bf5626f1ce47a6b66b64bf9c3f22545ce481161f9b2c5e9fdc302d4d5b3e7acfd549bb24ec1405e4d93b3727abd301d957f32d44ed8d6d5cb3af7f8d976
SSDEEP 192:ABq2LGaMbJY5IZFISMsTGTU8+M7xeH7wk:aYa4JNInFTPxeH7N
MD5 SHA1 SHA512 SSDEEP

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bin.exe

Path C:\Users\Admin\AppData\Roaming\bin.exe
Size 244KB
SHA256 0b5a9848fa4433d737febc05dafaa4f8db69d2605c8014a616fac6c4abc69c53
MD5 191c89bfc7613125182be0c6f7dc0828
SHA1 1f856de98621182f9885f5ceb5017806a48a19f6
SHA512 a1d22bfe1716682d00ae6dce97d2da37c33fcfc40a10da745f23abd837042e0016e651cabd9e12979dd2a0eb055c7f41c0d7ad8bafefb07e8203d3d4ef1f6550
SSDEEP 6144:oeXmQ6bo9WJnEkmlukOrPFxTfGarM3ZZjbT:oC6o9knhmAkOrf/IT
MD5 SHA1 SHA512 SSDEEP

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bin.exe

Path C:\Users\Admin\AppData\Roaming\bin.exe
Size 244KB
SHA256 0b5a9848fa4433d737febc05dafaa4f8db69d2605c8014a616fac6c4abc69c53
MD5 191c89bfc7613125182be0c6f7dc0828
SHA1 1f856de98621182f9885f5ceb5017806a48a19f6
SHA512 a1d22bfe1716682d00ae6dce97d2da37c33fcfc40a10da745f23abd837042e0016e651cabd9e12979dd2a0eb055c7f41c0d7ad8bafefb07e8203d3d4ef1f6550
SSDEEP 6144:oeXmQ6bo9WJnEkmlukOrPFxTfGarM3ZZjbT:oC6o9knhmAkOrf/IT
MD5 SHA1 SHA512 SSDEEP

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bin.exe

Path C:\Users\Admin\AppData\Roaming\bin.exe
Size 244KB
SHA256 0b5a9848fa4433d737febc05dafaa4f8db69d2605c8014a616fac6c4abc69c53
MD5 191c89bfc7613125182be0c6f7dc0828
SHA1 1f856de98621182f9885f5ceb5017806a48a19f6
SHA512 a1d22bfe1716682d00ae6dce97d2da37c33fcfc40a10da745f23abd837042e0016e651cabd9e12979dd2a0eb055c7f41c0d7ad8bafefb07e8203d3d4ef1f6550
SSDEEP 6144:oeXmQ6bo9WJnEkmlukOrPFxTfGarM3ZZjbT:oC6o9knhmAkOrf/IT
MD5 SHA1 SHA512 SSDEEP

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sqlite3.dll

Path \Users\Admin\AppData\Local\Temp\sqlite3.dll
Size 904KB
SHA256 99e91ae250c955bd403ec1a2321d6b11fcb715bdcc7cb3f63ffb46b349afde5c
MD5 5e5ba61531d74e45b11cadb79e7394a1
SHA1 677224e14aac9dd35f367d5eb1704b36e69356b8
SHA512 712bfe419ba97ecf0ec8323a68743013e8c767da9d986f74ab94d2a395c3086cac2a5823048e0022d3bbcebb55281b9e1f8c87fdc9295c70cc5521b57850bf46
SSDEEP 24576:oI0H1fcKoDde/KBkI/njv7UU5vrVGFWG/Pi:obaRdeyBkI/jjUU5vJ8S
MD5 SHA1 SHA512 SSDEEP

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memory/1192-28-0x0000000003F80000-0x000000000403C000-memory.dmp

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memory/1192-26-0x0000000003F80000-0x000000000403C000-memory.dmp

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memory/1192-25-0x0000000003F80000-0x000000000403C000-memory.dmp

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memory/1752-13-0x00000000013A0000-0x00000000013DD000-memory.dmp

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memory/1752-15-0x0000000000180000-0x000000000019B000-memory.dmp

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memory/1752-18-0x00000000013A0000-0x00000000013DD000-memory.dmp

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memory/1752-19-0x0000000000180000-0x000000000019B000-memory.dmp

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memory/1752-9-0x00000000013A0000-0x00000000013DD000-memory.dmp

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memory/1752-10-0x00000000013A0000-0x00000000013DD000-memory.dmp

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memory/1752-12-0x0000000000860000-0x0000000000B63000-memory.dmp

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memory/1752-14-0x00000000013A0000-0x00000000013DD000-memory.dmp

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memory/2816-20-0x0000000001EC0000-0x00000000021C3000-memory.dmp

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memory/2816-24-0x0000000000080000-0x00000000000BA000-memory.dmp

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memory/2816-23-0x0000000000510000-0x00000000005AA000-memory.dmp

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memory/2816-27-0x0000000000510000-0x00000000005AA000-memory.dmp

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memory/2816-16-0x0000000000080000-0x00000000000BA000-memory.dmp

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memory/2816-22-0x0000000000080000-0x00000000000BA000-memory.dmp

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memory/2816-17-0x0000000000080000-0x00000000000BA000-memory.dmp

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memory/2816-69-0x0000000061E00000-0x0000000061ECE000-memory.dmp

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