formbook | 86a3d79159668222e08f1b8fcb16b9994188077405d78453744f59bb314fc63d

General

Target

Inquiry.exe
Size

795KB
MD5

a06acb7a0f10d8f75fbab35b01a811f5
SHA1

93cb99d92c754669d063c842618813b8c72b63df
SHA256

7efed15a69ffc8fa8a65db6f3ed48fb3f5c727c0ef9917a352cbc713da4828a3
SHA512

48721464d5cf4ae1d8f14c6a1f4c6127964ace7794de18d84204c63c359d3315d2248cf634a5a2769995333a90a1a85ad8013072e2a8836b20c852e3405e5e76
SSDEEP

24576:FD4VHfQe6ZyWshg+qbZxTZZWunAWvS+ksZHSA/uwkSW+1mb:H5yA/uwdX1W

Score

10^/10

formbook useb discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

useb

Decoy

houseofbooksae.net

ipjfeugo.xyz

sandiegowavefc.store

kamerynemehiel.com

herbalhealthalert.com

nfmedco.com

dorhop.com

bookingscenter.com

blaclyteproductions.com

novatel-network.com

locomotionprogramming.com

dotchocolatebars.com

rohanyat.online

a2detail.com

cotedazurpropertyforsale.com

space-vantage.space

averysanswers.com

lionheartimagery.com

nozincwadi.com

lovemyduck.com

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
behavioral2/memory/4596-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4596-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4596-22-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3428-29-0x0000000000F40000-0x0000000000F6F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4716 set thread context of 4596	4716	Inquiry.exe	100
PID 4596 set thread context of 3452	4596	Inquiry.exe	55
PID 4596 set thread context of 3452	4596	Inquiry.exe	55
PID 3428 set thread context of 3452	3428	wlanext.exe	55

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	Inquiry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wlanext.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
4716	Inquiry.exe
4716	Inquiry.exe
4596	Inquiry.exe
4596	Inquiry.exe
4596	Inquiry.exe
4596	Inquiry.exe
4596	Inquiry.exe
4596	Inquiry.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe
3428	wlanext.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4596	Inquiry.exe
4596	Inquiry.exe
4596	Inquiry.exe
4596	Inquiry.exe
3428	wlanext.exe
3428	wlanext.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4716	Inquiry.exe
Token: SeDebugPrivilege	4596	Inquiry.exe
Token: SeDebugPrivilege	3428	wlanext.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4716 wrote to memory of 4596	4716	Inquiry.exe	100
PID 4716 wrote to memory of 4596	4716	Inquiry.exe	100
PID 4716 wrote to memory of 4596	4716	Inquiry.exe	100
PID 4716 wrote to memory of 4596	4716	Inquiry.exe	100
PID 4716 wrote to memory of 4596	4716	Inquiry.exe	100
PID 4716 wrote to memory of 4596	4716	Inquiry.exe	100
PID 3452 wrote to memory of 3428	3452	Explorer.EXE	101
PID 3452 wrote to memory of 3428	3452	Explorer.EXE	101
PID 3452 wrote to memory of 3428	3452	Explorer.EXE	101
PID 3428 wrote to memory of 1560	3428	wlanext.exe	102
PID 3428 wrote to memory of 1560	3428	wlanext.exe	102
PID 3428 wrote to memory of 1560	3428	wlanext.exe	102

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Users\Admin\AppData\Local\Temp\Inquiry.exe
  "C:\Users\Admin\AppData\Local\Temp\Inquiry.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4716
- - C:\Users\Admin\AppData\Local\Temp\Inquiry.exe
    "C:\Users\Admin\AppData\Local\Temp\Inquiry.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4596
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.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:3428
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Inquiry.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1560

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

Loading Replay Monitor...

Downloads

memory/3428-29-0x0000000000F40000-0x0000000000F6F000-memory.dmp

Filesize
188KB

Download
memory/3428-28-0x0000000000180000-0x0000000000197000-memory.dmp

Filesize
92KB

Download
memory/3428-26-0x0000000000180000-0x0000000000197000-memory.dmp

Filesize
92KB

Download
memory/3452-25-0x00000000087C0000-0x00000000088CE000-memory.dmp

Filesize
1.1MB

Download
memory/3452-30-0x0000000006EC0000-0x0000000006F9B000-memory.dmp

Filesize
876KB

Download
memory/3452-33-0x00000000088D0000-0x0000000008A13000-memory.dmp

Filesize
1.3MB

Download
memory/3452-35-0x00000000088D0000-0x0000000008A13000-memory.dmp

Filesize
1.3MB

Download
memory/3452-36-0x00000000088D0000-0x0000000008A13000-memory.dmp

Filesize
1.3MB

Download
memory/3452-24-0x0000000006EC0000-0x0000000006F9B000-memory.dmp

Filesize
876KB

Download
memory/3452-20-0x00000000087C0000-0x00000000088CE000-memory.dmp

Filesize
1.1MB

Download
memory/4596-19-0x0000000000E20000-0x0000000000E34000-memory.dmp

Filesize
80KB

Download
memory/4596-23-0x00000000012B0000-0x00000000012C4000-memory.dmp

Filesize
80KB

Download
memory/4596-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4596-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4596-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4596-16-0x0000000001320000-0x000000000166A000-memory.dmp

Filesize
3.3MB

Download
memory/4716-7-0x0000000005360000-0x000000000537A000-memory.dmp

Filesize
104KB

Download
memory/4716-15-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/4716-12-0x0000000007C90000-0x0000000007CD2000-memory.dmp

Filesize
264KB

Download
memory/4716-11-0x0000000006320000-0x0000000006326000-memory.dmp

Filesize
24KB

Download
memory/4716-10-0x0000000007B20000-0x0000000007B94000-memory.dmp

Filesize
464KB

Download
memory/4716-9-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/4716-8-0x000000007455E000-0x000000007455F000-memory.dmp

Filesize
4KB

Download
memory/4716-0-0x000000007455E000-0x000000007455F000-memory.dmp

Filesize
4KB

Download
memory/4716-6-0x0000000006330000-0x00000000063CC000-memory.dmp

Filesize
624KB

Download
memory/4716-4-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/4716-5-0x00000000050E0000-0x00000000050EA000-memory.dmp

Filesize
40KB

Download
memory/4716-3-0x0000000005130000-0x00000000051C2000-memory.dmp

Filesize
584KB

Download
memory/4716-2-0x00000000056E0000-0x0000000005C84000-memory.dmp

Filesize
5.6MB

Download
memory/4716-1-0x0000000000750000-0x000000000081C000-memory.dmp

Filesize
816KB

Download

Analysis

Sharing