formbook | 801ced2d6661e6ad1fe63da93f7a3700c36bd70b47cae2bfaf3c7b67c33513ec

General

Target

Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
Size

841KB
MD5

42d33f1103e99970b5a2bd66cc7abacf
SHA1

18b40de46605a148bd005f07f1396ea4be30f962
SHA256

898019809aff31148304abc19ab0514838d5ed4ae75318fe8865b4e5b139d52f
SHA512

471ef7e285ae5bb0db67e6722dde3877180d980f1cef271bf81e8c1f8c3fbd26ffa435eb04b0ef14ae6898ac26ed8b235eb9b203947aa4020955e5989e22fbbc
SSDEEP

12288:Duup9hCcfZ/2Yp45XWCPrpLlafo3arpcYVx1Izq+lG/hS2zG9+aw9cNq0p2W:qrk/2Yp4JWKmhpcewu+lghjZqN

Score

10^/10

formbook wk31 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

wk31

Decoy

soroban.xyz

irfirstaid.com

irsaycollection.com

thebardownstairsasheville.com

facebookmeta.business

paypalsupportclient.com

metaversusfacebook.com

litakparuikamazon.com

rivianmotorcompany.com

metaversepro.us

ikramfamilypractice.com

bitcoinfuturesetfs.online

5donline.com

rosemount.us

nicole-steinfort.com

performanceautorepairsj.com

scrabblecheats.us

kjg67amazon.com

formerlyknownasfacebook.com

youtubeandgooglepay.online

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/2668-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2668-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2668-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2984-29-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
1296	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2648 set thread context of 2668	2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe	32
PID 2668 set thread context of 1188	2668	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe	21
PID 2668 set thread context of 1188	2668	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe	21
PID 2984 set thread context of 1188	2984	cmmon32.exe	21

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmmon32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
2668	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
2668	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
2668	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe
2984	cmmon32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2668	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
2668	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
2668	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
2668	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
2984	cmmon32.exe
2984	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
Token: SeDebugPrivilege	2668	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
Token: SeDebugPrivilege	2984	cmmon32.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 2724	2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe	31
PID 2648 wrote to memory of 2724	2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe	31
PID 2648 wrote to memory of 2724	2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe	31
PID 2648 wrote to memory of 2724	2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe	31
PID 2648 wrote to memory of 2668	2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe	32
PID 2648 wrote to memory of 2668	2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe	32
PID 2648 wrote to memory of 2668	2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe	32
PID 2648 wrote to memory of 2668	2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe	32
PID 2648 wrote to memory of 2668	2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe	32
PID 2648 wrote to memory of 2668	2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe	32
PID 2648 wrote to memory of 2668	2648	Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe	32
PID 1188 wrote to memory of 2984	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2984	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2984	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2984	1188	Explorer.EXE	33
PID 2984 wrote to memory of 1296	2984	cmmon32.exe	34
PID 2984 wrote to memory of 1296	2984	cmmon32.exe	34
PID 2984 wrote to memory of 1296	2984	cmmon32.exe	34
PID 2984 wrote to memory of 1296	2984	cmmon32.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Users\Admin\AppData\Local\Temp\Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
  "C:\Users\Admin\AppData\Local\Temp\Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Users\Admin\AppData\Local\Temp\Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
    "C:\Users\Admin\AppData\Local\Temp\Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe"
    3⤵
    PID:2724
- - C:\Users\Admin\AppData\Local\Temp\Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe
    "C:\Users\Admin\AppData\Local\Temp\Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2668
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2984
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Estimates (Korea Zinc Co., Ltd. Onsan Refinery) 275-016.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1296

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1188-18-0x0000000004050000-0x0000000004250000-memory.dmp

Filesize
2.0MB

Download
memory/1188-30-0x00000000051D0000-0x0000000005370000-memory.dmp

Filesize
1.6MB

Download
memory/1188-25-0x0000000004330000-0x0000000004400000-memory.dmp

Filesize
832KB

Download
memory/1188-24-0x00000000051D0000-0x0000000005370000-memory.dmp

Filesize
1.6MB

Download
memory/1188-23-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1188-19-0x0000000004330000-0x0000000004400000-memory.dmp

Filesize
832KB

Download
memory/2648-6-0x0000000000F60000-0x0000000000FBC000-memory.dmp

Filesize
368KB

Download
memory/2648-5-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/2648-1-0x0000000001230000-0x0000000001308000-memory.dmp

Filesize
864KB

Download
memory/2648-2-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/2648-3-0x0000000000390000-0x000000000039C000-memory.dmp

Filesize
48KB

Download
memory/2648-4-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

Filesize
4KB

Download
memory/2648-13-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/2648-7-0x0000000004CC0000-0x0000000004CF6000-memory.dmp

Filesize
216KB

Download
memory/2648-0-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

Filesize
4KB

Download
memory/2668-17-0x00000000001C0000-0x00000000001D5000-memory.dmp

Filesize
84KB

Download
memory/2668-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2668-14-0x0000000000AE0000-0x0000000000DE3000-memory.dmp

Filesize
3.0MB

Download
memory/2668-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2668-22-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/2668-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2668-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2668-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2668-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2984-26-0x0000000000EB0000-0x0000000000EBD000-memory.dmp

Filesize
52KB

Download
memory/2984-28-0x0000000000EB0000-0x0000000000EBD000-memory.dmp

Filesize
52KB

Download
memory/2984-29-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download

Analysis

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