formbook | 2808519089c69f066640f310016f55547d60fd4b9c2c972100ca9d80be2b9473

General

Target

DHL Notification_pdf.exe
Size

410KB
MD5

175bb3094e662a84719acd057550210e
SHA1

ca032b78c1a1cf860494a14ff82cbe8e168bf009
SHA256

2808519089c69f066640f310016f55547d60fd4b9c2c972100ca9d80be2b9473
SHA512

d75c6bb272a5b9932df98a5e5f97267905be276d97cd4988a82df45cef4e2fc120f579ec172465f733877284e285ccdb66901073d681baef192c2526700d30f7
SSDEEP

6144:hNeZcTKu1gRtv6cWGd+WQkoUrG1f/o2ANAbIpwMz/eAJ/F8Nd2wJ1ilnTR9t:hNqv6cxdIkQ1noRNAG/hJF8L2jlTRb

Score

10^/10

formbook g28p rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

g28p

Decoy

whhmgs.asia

wellmedcaredirect.net

beggarded.com

wtpjiv.site

todo-celulares.com

parkitny.net

43345.top

pro-genie.com

cwdxz.com

cbc-inc.xyz

healthspots.net

rulil.top

pyramidaudit.solutions

k8sb15.live

hempaware.report

usclink.life

stayefs.net

05262.top

shop-izakaya-jin.com

iccworldcupnews.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/1892-70-0x00000000000E0000-0x000000000010F000-memory.dmp	formbook
behavioral1/memory/1892-75-0x00000000000E0000-0x000000000010F000-memory.dmp	formbook

Executes dropped EXE 1 IoCs

pid	Process
1836	jdgwoo.exe

Loads dropped DLL 3 IoCs

pid	Process
1932	DHL Notification_pdf.exe
1836	jdgwoo.exe
936	jdgwoo.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1836 set thread context of 936	1836	jdgwoo.exe	29
PID 936 set thread context of 1324	936	jdgwoo.exe	20
PID 1892 set thread context of 1324	1892	chkdsk.exe	20

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

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
936	jdgwoo.exe
936	jdgwoo.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe
1892	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
936	jdgwoo.exe
936	jdgwoo.exe
936	jdgwoo.exe
1892	chkdsk.exe
1892	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	936	jdgwoo.exe
Token: SeDebugPrivilege	1892	chkdsk.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1324	Explorer.EXE
1324	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1324	Explorer.EXE
1324	Explorer.EXE

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1932 wrote to memory of 1836	1932	DHL Notification_pdf.exe	28
PID 1932 wrote to memory of 1836	1932	DHL Notification_pdf.exe	28
PID 1932 wrote to memory of 1836	1932	DHL Notification_pdf.exe	28
PID 1932 wrote to memory of 1836	1932	DHL Notification_pdf.exe	28
PID 1836 wrote to memory of 936	1836	jdgwoo.exe	29
PID 1836 wrote to memory of 936	1836	jdgwoo.exe	29
PID 1836 wrote to memory of 936	1836	jdgwoo.exe	29
PID 1836 wrote to memory of 936	1836	jdgwoo.exe	29
PID 1836 wrote to memory of 936	1836	jdgwoo.exe	29
PID 1324 wrote to memory of 1892	1324	Explorer.EXE	30
PID 1324 wrote to memory of 1892	1324	Explorer.EXE	30
PID 1324 wrote to memory of 1892	1324	Explorer.EXE	30
PID 1324 wrote to memory of 1892	1324	Explorer.EXE	30
PID 1892 wrote to memory of 2044	1892	chkdsk.exe	31
PID 1892 wrote to memory of 2044	1892	chkdsk.exe	31
PID 1892 wrote to memory of 2044	1892	chkdsk.exe	31
PID 1892 wrote to memory of 2044	1892	chkdsk.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1324
- C:\Users\Admin\AppData\Local\Temp\DHL Notification_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL Notification_pdf.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1932
- - C:\Users\Admin\AppData\Local\Temp\jdgwoo.exe
    "C:\Users\Admin\AppData\Local\Temp\jdgwoo.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1836
  - - C:\Users\Admin\AppData\Local\Temp\jdgwoo.exe
      "C:\Users\Admin\AppData\Local\Temp\jdgwoo.exe"
      4⤵
      Loads dropped DLL
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:936
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1892
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\jdgwoo.exe"
    3⤵
    PID:2044

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\bymnsvltzmy.g

Filesize
4KB

MD5
1d44904ed110bd90f63480c1e34ad5e7

SHA1
6d7eeda6aa2b8e17cd3b09f569592b0f4e40693b

SHA256
77d6fa87840fbda367ab5035793ca624952c3fa7a028383f02041cf3b64081a2

SHA512
05b6f8a2c31dd08d347198b472786967ac22a83b3e50524a86c1f5a773c892075463f261cfeb070a592a654ee778228f769da378cd0dfc1b68b1a0c5ea661206

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

Filesize
123KB

MD5
2b8eba16a1626129317510285cd4c658

SHA1
ebc90aa3aa86c7e0e23c03372677620a74cc6cbc

SHA256
4847460b81af91b4c2533c12172e2b7c3cdf15e32d7cea2c0866301a8ab20f88

SHA512
32daa40f340da15ad1aedc2737ab1e3fa891bb27ca495ba013a93236b230db56a10ce2f6c285ea885a58241802901ec551ad7cfee15b6703e14daf580b82290f

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

Filesize
123KB

MD5
2b8eba16a1626129317510285cd4c658

SHA1
ebc90aa3aa86c7e0e23c03372677620a74cc6cbc

SHA256
4847460b81af91b4c2533c12172e2b7c3cdf15e32d7cea2c0866301a8ab20f88

SHA512
32daa40f340da15ad1aedc2737ab1e3fa891bb27ca495ba013a93236b230db56a10ce2f6c285ea885a58241802901ec551ad7cfee15b6703e14daf580b82290f

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

Filesize
123KB

MD5
2b8eba16a1626129317510285cd4c658

SHA1
ebc90aa3aa86c7e0e23c03372677620a74cc6cbc

SHA256
4847460b81af91b4c2533c12172e2b7c3cdf15e32d7cea2c0866301a8ab20f88

SHA512
32daa40f340da15ad1aedc2737ab1e3fa891bb27ca495ba013a93236b230db56a10ce2f6c285ea885a58241802901ec551ad7cfee15b6703e14daf580b82290f

Download Submit
C:\Users\Admin\AppData\Local\Temp\ndgxw.e

Filesize
185KB

MD5
6e936ac69323cd060c6865f50d2f430f

SHA1
d9b4035aab626fb0934f9c98ed7106040d8284f0

SHA256
f4689146a9d66a07b9d68c60346850097c70922640b327f0216333d3186b6a81

SHA512
4bdb0c525e8675d07feb59b7cbd96cbe41058c672573eccc50215faa2cf6001e18a85f85d9c224387fcf6eeebad39abd25e0d35188aaecb86edbdb2280253e96

Download Submit
\Users\Admin\AppData\Local\Temp\jdgwoo.exe

Filesize
123KB

MD5
2b8eba16a1626129317510285cd4c658

SHA1
ebc90aa3aa86c7e0e23c03372677620a74cc6cbc

SHA256
4847460b81af91b4c2533c12172e2b7c3cdf15e32d7cea2c0866301a8ab20f88

SHA512
32daa40f340da15ad1aedc2737ab1e3fa891bb27ca495ba013a93236b230db56a10ce2f6c285ea885a58241802901ec551ad7cfee15b6703e14daf580b82290f

Download Submit
\Users\Admin\AppData\Local\Temp\jdgwoo.exe

Filesize
123KB

MD5
2b8eba16a1626129317510285cd4c658

SHA1
ebc90aa3aa86c7e0e23c03372677620a74cc6cbc

SHA256
4847460b81af91b4c2533c12172e2b7c3cdf15e32d7cea2c0866301a8ab20f88

SHA512
32daa40f340da15ad1aedc2737ab1e3fa891bb27ca495ba013a93236b230db56a10ce2f6c285ea885a58241802901ec551ad7cfee15b6703e14daf580b82290f

Download Submit
memory/936-64-0x0000000000AA0000-0x0000000000DA3000-memory.dmp

Filesize
3.0MB

Download
memory/936-66-0x0000000000290000-0x00000000002A4000-memory.dmp

Filesize
80KB

Download
memory/1324-76-0x0000000006AF0000-0x0000000006C6C000-memory.dmp

Filesize
1.5MB

Download
memory/1324-65-0x0000000004DB0000-0x0000000004EB5000-memory.dmp

Filesize
1.0MB

Download
memory/1324-74-0x0000000004DB0000-0x0000000004EB5000-memory.dmp

Filesize
1.0MB

Download
memory/1324-73-0x0000000006AF0000-0x0000000006C6C000-memory.dmp

Filesize
1.5MB

Download
memory/1892-71-0x0000000001F10000-0x0000000002213000-memory.dmp

Filesize
3.0MB

Download
memory/1892-70-0x00000000000E0000-0x000000000010F000-memory.dmp

Filesize
188KB

Download
memory/1892-69-0x0000000000830000-0x0000000000837000-memory.dmp

Filesize
28KB

Download
memory/1892-72-0x0000000001E00000-0x0000000001E93000-memory.dmp

Filesize
588KB

Download
memory/1892-75-0x00000000000E0000-0x000000000010F000-memory.dmp

Filesize
188KB

Download
memory/1932-54-0x0000000075981000-0x0000000075983000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing