formbook | 49c79037bcb2462b16066842101bb75b2dc35784d16d85eab3fff542bbfbd161

General

Target

Purchase order4756485.exe
Size

998KB
MD5

524421853f704a1290bbf12d849c47f2
SHA1

4f704d094fcabfaa9f4a73fbbfc9651bdd73406a
SHA256

876955f77a0817e4de8c1d5fddfc98d8fea616499f91757fb3ab7f2a6fdd1577
SHA512

5d41c258f21a61c6a8505546281018a294b98b34444963a0b05a375c99d92fa796599a4634dc28ebbdfff8248f170253c64d14226a04c1560d56b7c85b2d5eb1
SSDEEP

12288:XHAsJsJbuA1Rzdnuc9DjwjFDDKaog1h1PU+bthEJ2/FmD4EwCYyz5IDAjH:RaFuA1fucaBDK3a1PU+BcUg4zAjH

Score

10^/10

formbook crdi discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

crdi

Decoy

propertyjumpstartwebinar.com

boc-vip.club

polestarnyc.com

travelonlinebiz.com

bukovynaent.com

bestfashoin.com

miniindiastore.com

wehatebillgates.com

holmescountyjusticecourt.com

colectivorenovemosjuntos.com

houstowarehouse.com

aocsw.com

sml-uniform.com

bandanasaint.com

petposhdeluxe.com

ezcscpawq.com

ladiesoption.club

refixu.com

selfwrrrth.com

rovietry.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/3716-13-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/3716-18-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/3160-23-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3152 set thread context of 3716	3152	Purchase order4756485.exe	91
PID 3716 set thread context of 3392	3716	Purchase order4756485.exe	56
PID 3160 set thread context of 3392	3160	cmstp.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	Purchase order4756485.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
3152	Purchase order4756485.exe
3716	Purchase order4756485.exe
3716	Purchase order4756485.exe
3716	Purchase order4756485.exe
3716	Purchase order4756485.exe
3160	cmstp.exe
3160	cmstp.exe
3160	cmstp.exe
3160	cmstp.exe
3160	cmstp.exe
3160	cmstp.exe
3160	cmstp.exe
3160	cmstp.exe
3160	cmstp.exe
3160	cmstp.exe
3160	cmstp.exe
3160	cmstp.exe
3160	cmstp.exe
3160	cmstp.exe
3160	cmstp.exe
3160	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3716	Purchase order4756485.exe
3716	Purchase order4756485.exe
3716	Purchase order4756485.exe
3160	cmstp.exe
3160	cmstp.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3152	Purchase order4756485.exe
Token: SeDebugPrivilege	3716	Purchase order4756485.exe
Token: SeDebugPrivilege	3160	cmstp.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3152 wrote to memory of 3716	3152	Purchase order4756485.exe	91
PID 3152 wrote to memory of 3716	3152	Purchase order4756485.exe	91
PID 3152 wrote to memory of 3716	3152	Purchase order4756485.exe	91
PID 3152 wrote to memory of 3716	3152	Purchase order4756485.exe	91
PID 3152 wrote to memory of 3716	3152	Purchase order4756485.exe	91
PID 3152 wrote to memory of 3716	3152	Purchase order4756485.exe	91
PID 3392 wrote to memory of 3160	3392	Explorer.EXE	92
PID 3392 wrote to memory of 3160	3392	Explorer.EXE	92
PID 3392 wrote to memory of 3160	3392	Explorer.EXE	92
PID 3160 wrote to memory of 3324	3160	cmstp.exe	93
PID 3160 wrote to memory of 3324	3160	cmstp.exe	93
PID 3160 wrote to memory of 3324	3160	cmstp.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3392
- C:\Users\Admin\AppData\Local\Temp\Purchase order4756485.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase order4756485.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3152
- - C:\Users\Admin\AppData\Local\Temp\Purchase order4756485.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase order4756485.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3716
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.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:3160
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Purchase order4756485.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3324

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/3152-12-0x0000000007E80000-0x0000000007EBA000-memory.dmp

Filesize
232KB

Download
memory/3152-2-0x0000000004A80000-0x0000000004B1C000-memory.dmp

Filesize
624KB

Download
memory/3152-0-0x00000000747CE000-0x00000000747CF000-memory.dmp

Filesize
4KB

Download
memory/3152-15-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/3152-4-0x0000000004BC0000-0x0000000004C52000-memory.dmp

Filesize
584KB

Download
memory/3152-5-0x0000000004B60000-0x0000000004B6A000-memory.dmp

Filesize
40KB

Download
memory/3152-6-0x0000000004DC0000-0x0000000004E16000-memory.dmp

Filesize
344KB

Download
memory/3152-7-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/3152-8-0x0000000004D60000-0x0000000004D6A000-memory.dmp

Filesize
40KB

Download
memory/3152-9-0x00000000747CE000-0x00000000747CF000-memory.dmp

Filesize
4KB

Download
memory/3152-10-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/3152-11-0x0000000005900000-0x0000000005982000-memory.dmp

Filesize
520KB

Download
memory/3152-3-0x00000000050D0000-0x0000000005674000-memory.dmp

Filesize
5.6MB

Download
memory/3152-1-0x0000000000010000-0x0000000000110000-memory.dmp

Filesize
1024KB

Download
memory/3160-21-0x00000000000D0000-0x00000000000E6000-memory.dmp

Filesize
88KB

Download
memory/3160-22-0x00000000000D0000-0x00000000000E6000-memory.dmp

Filesize
88KB

Download
memory/3160-23-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3392-29-0x0000000009260000-0x0000000009381000-memory.dmp

Filesize
1.1MB

Download
memory/3392-20-0x0000000008F50000-0x00000000090D7000-memory.dmp

Filesize
1.5MB

Download
memory/3392-24-0x0000000008F50000-0x00000000090D7000-memory.dmp

Filesize
1.5MB

Download
memory/3392-26-0x0000000009260000-0x0000000009381000-memory.dmp

Filesize
1.1MB

Download
memory/3392-27-0x0000000009260000-0x0000000009381000-memory.dmp

Filesize
1.1MB

Download
memory/3716-16-0x0000000001810000-0x0000000001B5A000-memory.dmp

Filesize
3.3MB

Download
memory/3716-19-0x0000000001210000-0x0000000001224000-memory.dmp

Filesize
80KB

Download
memory/3716-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3716-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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