formbook | dc4fa64bbbcd740a67ddc7d45d640d63773bad24e4da393345920a71881208ba

General

Target

afvwHSigHFXCUeB.exe
Size

790KB
MD5

c3fa5d83eb19b8a6ada7964677ea7b10
SHA1

34b56181e7ee8ed8d74dfe4395519c5eb28f210c
SHA256

b7ac8ccaeb9ae9b7311d3432a0ec471ff103bc32b52b3ab29b649bccf67a875e
SHA512

f047817fb405639fca96ade95d197005fa9d307a01f4941898791dc507bd9afbb7ec307b99cdb260cfafb496e696226c2d05712638e0474c2440ece6c6fc0458
SSDEEP

12288:5Ui1TAQk1Y95TthyAk237yMW92GtqsnvEHPVKPOldVFO4SA:ai1kI5TDpT3864vEvVKPO3

Score

10^/10

formbook wps3 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

wps3

Decoy

jtekcreations.com

funstuffrus.com

golomt.design

alargebeer.com

gravitybox.info

kiwifruitcar.com

ee34ngty.xyz

sejawco.com

edgeomni.com

ackdistro.com

quangtv.one

m3rrqandonic.com

9512355.com

0ufkf7knwp.xyz

dada8881069.com

androidchitchat.com

freight-indigo.com

poppersvancouver.com

wu7d27eag2dn.xyz

bluemabell.com

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1080-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1080-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/5016-23-0x0000000000D00000-0x0000000000D2F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3528 set thread context of 1080	3528	afvwHSigHFXCUeB.exe	99
PID 1080 set thread context of 3504	1080	afvwHSigHFXCUeB.exe	56
PID 5016 set thread context of 3504	5016	cscript.exe	56

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	afvwHSigHFXCUeB.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

pid	Process
1080	afvwHSigHFXCUeB.exe
1080	afvwHSigHFXCUeB.exe
1080	afvwHSigHFXCUeB.exe
1080	afvwHSigHFXCUeB.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe
5016	cscript.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1080	afvwHSigHFXCUeB.exe
1080	afvwHSigHFXCUeB.exe
1080	afvwHSigHFXCUeB.exe
5016	cscript.exe
5016	cscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1080	afvwHSigHFXCUeB.exe
Token: SeDebugPrivilege	5016	cscript.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3528 wrote to memory of 1080	3528	afvwHSigHFXCUeB.exe	99
PID 3528 wrote to memory of 1080	3528	afvwHSigHFXCUeB.exe	99
PID 3528 wrote to memory of 1080	3528	afvwHSigHFXCUeB.exe	99
PID 3528 wrote to memory of 1080	3528	afvwHSigHFXCUeB.exe	99
PID 3528 wrote to memory of 1080	3528	afvwHSigHFXCUeB.exe	99
PID 3528 wrote to memory of 1080	3528	afvwHSigHFXCUeB.exe	99
PID 3504 wrote to memory of 5016	3504	Explorer.EXE	100
PID 3504 wrote to memory of 5016	3504	Explorer.EXE	100
PID 3504 wrote to memory of 5016	3504	Explorer.EXE	100
PID 5016 wrote to memory of 2980	5016	cscript.exe	101
PID 5016 wrote to memory of 2980	5016	cscript.exe	101
PID 5016 wrote to memory of 2980	5016	cscript.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3504
- C:\Users\Admin\AppData\Local\Temp\afvwHSigHFXCUeB.exe
  "C:\Users\Admin\AppData\Local\Temp\afvwHSigHFXCUeB.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3528
- - C:\Users\Admin\AppData\Local\Temp\afvwHSigHFXCUeB.exe
    "C:\Users\Admin\AppData\Local\Temp\afvwHSigHFXCUeB.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1080
- C:\Windows\SysWOW64\cscript.exe
  "C:\Windows\SysWOW64\cscript.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:5016
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\afvwHSigHFXCUeB.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2980

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/1080-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1080-18-0x0000000001190000-0x00000000011A4000-memory.dmp

Filesize
80KB

Download
memory/1080-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1080-15-0x00000000011D0000-0x000000000151A000-memory.dmp

Filesize
3.3MB

Download
memory/3504-30-0x00000000031A0000-0x000000000327E000-memory.dmp

Filesize
888KB

Download
memory/3504-28-0x00000000031A0000-0x000000000327E000-memory.dmp

Filesize
888KB

Download
memory/3504-27-0x00000000031A0000-0x000000000327E000-memory.dmp

Filesize
888KB

Download
memory/3504-22-0x0000000003010000-0x0000000003107000-memory.dmp

Filesize
988KB

Download
memory/3504-19-0x0000000003010000-0x0000000003107000-memory.dmp

Filesize
988KB

Download
memory/3528-6-0x0000000005D10000-0x0000000005D1E000-memory.dmp

Filesize
56KB

Download
memory/3528-0-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

Filesize
4KB

Download
memory/3528-11-0x0000000006F70000-0x0000000006FA4000-memory.dmp

Filesize
208KB

Download
memory/3528-9-0x0000000006FD0000-0x000000000706C000-memory.dmp

Filesize
624KB

Download
memory/3528-14-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/3528-8-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/3528-7-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

Filesize
4KB

Download
memory/3528-10-0x00000000085F0000-0x00000000086A4000-memory.dmp

Filesize
720KB

Download
memory/3528-5-0x0000000005990000-0x000000000599A000-memory.dmp

Filesize
40KB

Download
memory/3528-1-0x0000000000EC0000-0x0000000000F8C000-memory.dmp

Filesize
816KB

Download
memory/3528-2-0x0000000005F80000-0x0000000006524000-memory.dmp

Filesize
5.6MB

Download
memory/3528-4-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/3528-3-0x00000000059D0000-0x0000000005A62000-memory.dmp

Filesize
584KB

Download
memory/5016-23-0x0000000000D00000-0x0000000000D2F000-memory.dmp

Filesize
188KB

Download
memory/5016-20-0x0000000000F80000-0x0000000000FA7000-memory.dmp

Filesize
156KB

Download
memory/5016-21-0x0000000000F80000-0x0000000000FA7000-memory.dmp

Filesize
156KB

Download

Analysis

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