formbook | 46af67f4a2a2c3d7bc6d8743941718c5abd1f3cacb0dd08f9a4c24651a843752

Analysis

max time kernel
147s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
17-10-2022 13:35

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General

Target

Foreign Payment swift_pdf.js
Size

342KB
MD5

4e474a544aa97316f1f1ddf56e9c5c70
SHA1

b9775c6cf7a5c6c74b8d9ed1776d35a5a1d8f494
SHA256

46af67f4a2a2c3d7bc6d8743941718c5abd1f3cacb0dd08f9a4c24651a843752
SHA512

4ba58f40318d2582c43e84acb993bb8e9684a3b3955e771043e0742e309020e5482b6aeb5d437dea6c4ecd31ffcf9d6df8693b268c5ac187ba866c4f04d2fbaa
SSDEEP

6144:q8OjK5gRBwhZ2FlbDsmxSvODgTEqEqSMa7Z3tFuQilEI64OHdlG:buKJUlHLxSWDyREqSMstFclEz37G

Score

10^/10

formbook vjw0rm xrob rat spyware stealer trojan worm

Malware Config

Extracted

Family

formbook

Campaign

xrob

Decoy

dV8FCtdWdnfMJ9thh8l/

IJG6Bh4iMeHVBHNp2MrpTA==

NhPKKtmQxnHYF/80

f4M2RhGEf3Ot13+qLrKqxb9f3dXj9Q==

A/689/MibSRBgkPkx07m+H+g

e8OOkUu9y/uYCMsdrR3s0mODmGw3d8t9Og==

gLN5bn+Zq1VQXmOOvw==

NFcQGvViY5sxmkty83Fde4GQhg==

XWMfFSM3f7GT9w==

Ih6vvqf9R8gDObM=

FGAlLASHlpLaUUKUJIwm9ABQ2Js=

v8R615LDC8iWchwv

m+u3rLUxScgDObM=

jc3eahERf7GT9w==

TYNBVDadkpTF76HeNl/rbwWtLSbyPzM=

j6NQmhWeOi2B

aqJocUfM3v97ryScY6EiSMbVyBak

V7nYOyEZKa2J/KKh5RMhJrbyK/eC/Q==

8zPsAt3ejcgDObM=

Rpe+BrGBzpGa9q8FHKpi

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Blocklisted process makes network request 6 IoCs

flow	pid	Process
5	2232	wscript.exe
20	2232	wscript.exe
47	2232	wscript.exe
61	2232	wscript.exe
74	2232	wscript.exe
87	2232	wscript.exe

Executes dropped EXE 1 IoCs

pid	Process
3024	bin.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	bin.exe

Drops startup file 2 IoCs

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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3024 set thread context of 1272	3024	bin.exe	54
PID 4764 set thread context of 1272	4764	msdt.exe	54

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

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msdt.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
3024	bin.exe
3024	bin.exe
3024	bin.exe
3024	bin.exe
3024	bin.exe
3024	bin.exe
3024	bin.exe
3024	bin.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1272	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
3024	bin.exe
3024	bin.exe
3024	bin.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe
4764	msdt.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3024	bin.exe
Token: SeDebugPrivilege	4764	msdt.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4004 wrote to memory of 2232	4004	wscript.exe	82
PID 4004 wrote to memory of 2232	4004	wscript.exe	82
PID 4004 wrote to memory of 3024	4004	wscript.exe	83
PID 4004 wrote to memory of 3024	4004	wscript.exe	83
PID 4004 wrote to memory of 3024	4004	wscript.exe	83
PID 1272 wrote to memory of 4764	1272	Explorer.EXE	84
PID 1272 wrote to memory of 4764	1272	Explorer.EXE	84
PID 1272 wrote to memory of 4764	1272	Explorer.EXE	84
PID 4764 wrote to memory of 3428	4764	msdt.exe	91
PID 4764 wrote to memory of 3428	4764	msdt.exe	91
PID 4764 wrote to memory of 3428	4764	msdt.exe	91

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1272
- C:\Windows\system32\wscript.exe
  wscript.exe "C:\Users\Admin\AppData\Local\Temp\Foreign Payment swift_pdf.js"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:4004
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\ZilDzmhvTr.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    PID:2232
- - 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:3024
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4764
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:3428

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
185KB

MD5
26db0806c0871f293a77e5d5676e2fd8

SHA1
7c17ccce454d81bb999c04d45e9e4913969a73ee

SHA256
2c623f8e02e0aef43501e320fd20a3b407dcf35676e6620574bf7e8ce4844e66

SHA512
0dac19dab4827a036a4e42371807639a4c378b440c3edc9ae30171cfb62a894243dc55ad5145434fac384aa37dd32381d148757e35c08300bbfe45c4cb85c09f

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

Filesize
185KB

MD5
26db0806c0871f293a77e5d5676e2fd8

SHA1
7c17ccce454d81bb999c04d45e9e4913969a73ee

SHA256
2c623f8e02e0aef43501e320fd20a3b407dcf35676e6620574bf7e8ce4844e66

SHA512
0dac19dab4827a036a4e42371807639a4c378b440c3edc9ae30171cfb62a894243dc55ad5145434fac384aa37dd32381d148757e35c08300bbfe45c4cb85c09f

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

Filesize
5KB

MD5
53b05290462c06f2a2989e52d53f6db8

SHA1
e1d348471435c8e436043a1887be65b865081b24

SHA256
2f36773b7bcb196289aaee5a765993bd484665840886645b4998f7a9bc97111c

SHA512
10b650bfb1191c57478f65aa34829a38943b71caedab4ea1844464c6c556dc8cddc9fe875d1c26ae40bec7e369ce2aa742333df68918c4a722bc165e45c7ecf1

Download Submit
memory/1272-140-0x0000000008F10000-0x0000000009087000-memory.dmp

Filesize
1.5MB

Download
memory/1272-149-0x0000000008CB0000-0x0000000008DDC000-memory.dmp

Filesize
1.2MB

Download
memory/1272-147-0x0000000008CB0000-0x0000000008DDC000-memory.dmp

Filesize
1.2MB

Download
memory/3024-142-0x0000000000810000-0x000000000083F000-memory.dmp

Filesize
188KB

Download
memory/3024-139-0x00000000011D0000-0x00000000011E0000-memory.dmp

Filesize
64KB

Download
memory/3024-138-0x0000000001680000-0x00000000019CA000-memory.dmp

Filesize
3.3MB

Download
memory/3024-137-0x0000000000810000-0x000000000083F000-memory.dmp

Filesize
188KB

Download
memory/4764-143-0x0000000000D40000-0x0000000000D97000-memory.dmp

Filesize
348KB

Download
memory/4764-144-0x0000000000F50000-0x0000000000F7D000-memory.dmp

Filesize
180KB

Download
memory/4764-145-0x00000000032E0000-0x000000000362A000-memory.dmp

Filesize
3.3MB

Download
memory/4764-146-0x0000000003010000-0x000000000309F000-memory.dmp

Filesize
572KB

Download
memory/4764-148-0x0000000000F50000-0x0000000000F7D000-memory.dmp

Filesize
180KB

Download