formbook | ab2f8c8398a0233c6d9b0308b3499e7cababf65a1ec913c4a88c895edaa822c7

Analysis

max time kernel
152s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 13:20

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General

Target

37c2f744f5c480d0b4bf96c78da15dfb.exe
Size

760KB
MD5

37c2f744f5c480d0b4bf96c78da15dfb
SHA1

1626c779d458416a559f95ac5d21b62aba381ae0
SHA256

ab2f8c8398a0233c6d9b0308b3499e7cababf65a1ec913c4a88c895edaa822c7
SHA512

a2571c4ee5f0c3c662ef529fee2b5c528a95075944781bc6e6c4aaa98fd991ef41a6f29bfc2728518de39354da656fed6558c48d8ea10510963541d995bd9956
SSDEEP

12288:rWSZjnSnDs/65nfND/2Iokna8XAp2sixvMWBRF:runDs/6VNL2IoBaEW

Score

10^/10

formbook vd9n rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

vd9n

Decoy

theunwrappedcollective.com

seckj-ic.com

tyresandover.com

thetrophyworld.com

fonggrconstruction.com

hopiproject.com

sktitle.com

charlotteobscurer.com

qjuhe.com

girlzglitter.com

createmylawn.com

hempcbgpill.com

zzdfdzkj.com

shreehariessential.com

226sm.com

getcupscall.com

neuralviolin.com

sanskaar.life

xn--fhqrm54yyukopc.com

togetherx4fantasy5star.today

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/2144-17-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/2144-22-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1184-28-0x0000000000C30000-0x0000000000C5E000-memory.dmp	formbook
behavioral2/memory/1184-34-0x0000000000C30000-0x0000000000C5E000-memory.dmp	formbook

Checks computer location settings 2 TTPs 1 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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	37c2f744f5c480d0b4bf96c78da15dfb.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4984 set thread context of 2144	4984	37c2f744f5c480d0b4bf96c78da15dfb.exe	105
PID 2144 set thread context of 3560	2144	RegSvcs.exe	46
PID 1184 set thread context of 3560	1184	wlanext.exe	46

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
1692	schtasks.exe

Suspicious behavior: EnumeratesProcesses 55 IoCs

pid	Process
4984	37c2f744f5c480d0b4bf96c78da15dfb.exe
4984	37c2f744f5c480d0b4bf96c78da15dfb.exe
4984	37c2f744f5c480d0b4bf96c78da15dfb.exe
4984	37c2f744f5c480d0b4bf96c78da15dfb.exe
2144	RegSvcs.exe
2144	RegSvcs.exe
2144	RegSvcs.exe
2144	RegSvcs.exe
2144	RegSvcs.exe
2144	RegSvcs.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe
1184	wlanext.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2144	RegSvcs.exe
2144	RegSvcs.exe
2144	RegSvcs.exe
1184	wlanext.exe
1184	wlanext.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4984	37c2f744f5c480d0b4bf96c78da15dfb.exe
Token: SeDebugPrivilege	2144	RegSvcs.exe
Token: SeDebugPrivilege	1184	wlanext.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3560	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4984 wrote to memory of 1692	4984	37c2f744f5c480d0b4bf96c78da15dfb.exe	103
PID 4984 wrote to memory of 1692	4984	37c2f744f5c480d0b4bf96c78da15dfb.exe	103
PID 4984 wrote to memory of 1692	4984	37c2f744f5c480d0b4bf96c78da15dfb.exe	103
PID 4984 wrote to memory of 2144	4984	37c2f744f5c480d0b4bf96c78da15dfb.exe	105
PID 4984 wrote to memory of 2144	4984	37c2f744f5c480d0b4bf96c78da15dfb.exe	105
PID 4984 wrote to memory of 2144	4984	37c2f744f5c480d0b4bf96c78da15dfb.exe	105
PID 4984 wrote to memory of 2144	4984	37c2f744f5c480d0b4bf96c78da15dfb.exe	105
PID 4984 wrote to memory of 2144	4984	37c2f744f5c480d0b4bf96c78da15dfb.exe	105
PID 4984 wrote to memory of 2144	4984	37c2f744f5c480d0b4bf96c78da15dfb.exe	105
PID 3560 wrote to memory of 1184	3560	Explorer.EXE	106
PID 3560 wrote to memory of 1184	3560	Explorer.EXE	106
PID 3560 wrote to memory of 1184	3560	Explorer.EXE	106
PID 1184 wrote to memory of 3056	1184	wlanext.exe	107
PID 1184 wrote to memory of 3056	1184	wlanext.exe	107
PID 1184 wrote to memory of 3056	1184	wlanext.exe	107

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3560
- C:\Users\Admin\AppData\Local\Temp\37c2f744f5c480d0b4bf96c78da15dfb.exe
  "C:\Users\Admin\AppData\Local\Temp\37c2f744f5c480d0b4bf96c78da15dfb.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4984
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LtkyJzyTd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp53C8.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1692
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2144
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1184
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:3056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

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

memory/1184-27-0x0000000000170000-0x0000000000187000-memory.dmp

Filesize
92KB

Download
memory/1184-34-0x0000000000C30000-0x0000000000C5E000-memory.dmp

Filesize
184KB

Download
memory/1184-31-0x00000000011F0000-0x0000000001283000-memory.dmp

Filesize
588KB

Download
memory/1184-29-0x0000000001300000-0x000000000164A000-memory.dmp

Filesize
3.3MB

Download
memory/1184-28-0x0000000000C30000-0x0000000000C5E000-memory.dmp

Filesize
184KB

Download
memory/1184-25-0x0000000000170000-0x0000000000187000-memory.dmp

Filesize
92KB

Download
memory/2144-20-0x0000000001410000-0x000000000175A000-memory.dmp

Filesize
3.3MB

Download
memory/2144-17-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2144-23-0x00000000013E0000-0x00000000013F4000-memory.dmp

Filesize
80KB

Download
memory/2144-22-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3560-24-0x0000000009440000-0x00000000095B0000-memory.dmp

Filesize
1.4MB

Download
memory/3560-32-0x0000000009440000-0x00000000095B0000-memory.dmp

Filesize
1.4MB

Download
memory/3560-40-0x00000000095B0000-0x000000000973C000-memory.dmp

Filesize
1.5MB

Download
memory/3560-37-0x00000000095B0000-0x000000000973C000-memory.dmp

Filesize
1.5MB

Download
memory/3560-35-0x00000000095B0000-0x000000000973C000-memory.dmp

Filesize
1.5MB

Download
memory/4984-9-0x0000000005C60000-0x0000000005C70000-memory.dmp

Filesize
64KB

Download
memory/4984-8-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/4984-7-0x0000000007120000-0x00000000071BC000-memory.dmp

Filesize
624KB

Download
memory/4984-6-0x0000000005F20000-0x0000000005F3C000-memory.dmp

Filesize
112KB

Download
memory/4984-5-0x0000000005C30000-0x0000000005C3A000-memory.dmp

Filesize
40KB

Download
memory/4984-4-0x0000000005C60000-0x0000000005C70000-memory.dmp

Filesize
64KB

Download
memory/4984-3-0x0000000005A90000-0x0000000005B22000-memory.dmp

Filesize
584KB

Download
memory/4984-2-0x0000000005F60000-0x0000000006504000-memory.dmp

Filesize
5.6MB

Download
memory/4984-11-0x00000000097F0000-0x0000000009824000-memory.dmp

Filesize
208KB

Download
memory/4984-1-0x0000000000FD0000-0x0000000001094000-memory.dmp

Filesize
784KB

Download
memory/4984-0-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/4984-19-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/4984-10-0x0000000007080000-0x00000000070EA000-memory.dmp

Filesize
424KB

Download