formbook | cbe1ce2523037019b0ad6710496f03b6b147cbfa833875e2b926d7126a72d66a

General

Target

Purchase Order KEI_24-25_2014_pdf.exe
Size

636KB
MD5

db540008406cdfda78d7376355137f07
SHA1

67ba297c80a80f17ec891c0429b59f30527724d9
SHA256

57faa8a932b14577e6059332889866501a93e2b9552dd81dcb79a047254be749
SHA512

4fac3ffd2d003f51bb9cc3c97c65486385c54baef4ddb88e6b3db6713f61d86b25879d119cc3f6dca675429bb8b105e7cad07477edc33edc35eb74a01208f79c
SSDEEP

12288:zT4/i2fmLZL41rjVZL3ANOZNMMizbXrK47MColgzsDk:zT4q2fmLZM53AQZ/inblwBgI

Score

10^/10

formbook btrd discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

btrd

Decoy

toulouse.gold

launchyouglobal.com

margarita-services.com

dasnail.club

casa-hilo.com

hardscapesofflorida.com

thepositivitypulse.com

kkmyanev.cfd

love6ace22.top

castorcruise.com

chch6.com

h59f07jy.cfd

saatvikteerthyatra.com

fxsecuretrading-option.com

mostbet-k1o.click

36-m.beauty

ko-or-a-news.com

eurekatextile.com

gynlkj.com

deepsouthcraftsman.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
behavioral1/memory/2712-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2712-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1780-26-0x0000000000100000-0x000000000012F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2968 set thread context of 2712	2968	Purchase Order KEI_24-25_2014_pdf.exe	30
PID 2712 set thread context of 1188	2712	AddInProcess32.exe	21
PID 1780 set thread context of 1188	1780	chkdsk.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	Purchase Order KEI_24-25_2014_pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
2968	Purchase Order KEI_24-25_2014_pdf.exe
2968	Purchase Order KEI_24-25_2014_pdf.exe
2968	Purchase Order KEI_24-25_2014_pdf.exe
2712	AddInProcess32.exe
2712	AddInProcess32.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe
1780	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2712	AddInProcess32.exe
2712	AddInProcess32.exe
2712	AddInProcess32.exe
1780	chkdsk.exe
1780	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2968	Purchase Order KEI_24-25_2014_pdf.exe
Token: SeDebugPrivilege	2712	AddInProcess32.exe
Token: SeDebugPrivilege	1780	chkdsk.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 2712	2968	Purchase Order KEI_24-25_2014_pdf.exe	30
PID 2968 wrote to memory of 2712	2968	Purchase Order KEI_24-25_2014_pdf.exe	30
PID 2968 wrote to memory of 2712	2968	Purchase Order KEI_24-25_2014_pdf.exe	30
PID 2968 wrote to memory of 2712	2968	Purchase Order KEI_24-25_2014_pdf.exe	30
PID 2968 wrote to memory of 2712	2968	Purchase Order KEI_24-25_2014_pdf.exe	30
PID 2968 wrote to memory of 2712	2968	Purchase Order KEI_24-25_2014_pdf.exe	30
PID 2968 wrote to memory of 2712	2968	Purchase Order KEI_24-25_2014_pdf.exe	30
PID 1188 wrote to memory of 1780	1188	Explorer.EXE	31
PID 1188 wrote to memory of 1780	1188	Explorer.EXE	31
PID 1188 wrote to memory of 1780	1188	Explorer.EXE	31
PID 1188 wrote to memory of 1780	1188	Explorer.EXE	31
PID 1780 wrote to memory of 3024	1780	chkdsk.exe	32
PID 1780 wrote to memory of 3024	1780	chkdsk.exe	32
PID 1780 wrote to memory of 3024	1780	chkdsk.exe	32
PID 1780 wrote to memory of 3024	1780	chkdsk.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Users\Admin\AppData\Local\Temp\Purchase Order KEI_24-25_2014_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase Order KEI_24-25_2014_pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2968
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2712
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1780
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

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/1188-27-0x0000000004F90000-0x0000000005139000-memory.dmp

Filesize
1.7MB

Download
memory/1188-23-0x0000000004F90000-0x0000000005139000-memory.dmp

Filesize
1.7MB

Download
memory/1780-26-0x0000000000100000-0x000000000012F000-memory.dmp

Filesize
188KB

Download
memory/1780-25-0x00000000009F0000-0x00000000009F7000-memory.dmp

Filesize
28KB

Download
memory/1780-24-0x00000000009F0000-0x00000000009F7000-memory.dmp

Filesize
28KB

Download
memory/2712-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2712-19-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/2712-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2712-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2712-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-20-0x0000000000110000-0x0000000000124000-memory.dmp

Filesize
80KB

Download
memory/2712-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2968-5-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download
memory/2968-15-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/2968-17-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/2968-14-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/2968-13-0x0000000074BDE000-0x0000000074BDF000-memory.dmp

Filesize
4KB

Download
memory/2968-6-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/2968-0-0x0000000074BDE000-0x0000000074BDF000-memory.dmp

Filesize
4KB

Download
memory/2968-4-0x0000000000590000-0x00000000005AA000-memory.dmp

Filesize
104KB

Download
memory/2968-3-0x0000000002070000-0x0000000002096000-memory.dmp

Filesize
152KB

Download
memory/2968-2-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/2968-1-0x00000000003F0000-0x0000000000496000-memory.dmp

Filesize
664KB

Download

Analysis

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