formbook | 220527f91eba446d157c6ef8b0d29b0a47907f6e74e5a4a307efe667be6b084b

General

Target

SHIPPING DOCUMENT BL.exe
Size

1.1MB
MD5

ac0d95c5e5822d99efede44898f59296
SHA1

481243791ff40babf0d0460e3370f6d1f0b42cb1
SHA256

220527f91eba446d157c6ef8b0d29b0a47907f6e74e5a4a307efe667be6b084b
SHA512

6395ca842a120507d6e4596ca54dee94c07f84238b8eec3cb02f1c62f19436e81317e22a74abe1dcc0984135c59148850e9c7217d3e7918395a90241f2ae3938
SSDEEP

24576:8RmJkcoQricOIQxiZY1iaA4Ys7dzWAw0bx6vkkMevlZ:pJZoQrbTFZY1iaAAxze0bxyT

Score

10^/10

formbook e62s discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

e62s

Decoy

ellinksa.shop

uckyspinph.xyz

owdark.net

arriage-therapy-72241.bond

w7ijko4rv4p97b.top

heirbuzzwords.buzz

aspart.shop

ctivemail5-kagoya-com.info

shacertification9.shop

zitcd65k3.buzz

llkosoi.info

ru8.info

rhgtrdjdjykyetrdjftd.buzz

yschoollist.kiwi

oftfolio.online

rograma-de-almacen-2.online

oudoarms.top

mwquas.xyz

orjagaucha.website

nlinechat-mh.online

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
behavioral1/memory/2708-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2708-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2708-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2280-17-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1868 set thread context of 2708	1868	SHIPPING DOCUMENT BL.exe	30
PID 2708 set thread context of 1200	2708	svchost.exe	21
PID 2708 set thread context of 1200	2708	svchost.exe	21
PID 2280 set thread context of 1200	2280	chkdsk.exe	21

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

System Information Discovery
T1082

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SHIPPING DOCUMENT BL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1868	SHIPPING DOCUMENT BL.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 31 IoCs

pid	Process
2708	svchost.exe
2708	svchost.exe
2708	svchost.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe
2280	chkdsk.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1868	SHIPPING DOCUMENT BL.exe
2708	svchost.exe
2708	svchost.exe
2708	svchost.exe
2708	svchost.exe
2280	chkdsk.exe
2280	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2708	svchost.exe
Token: SeDebugPrivilege	2280	chkdsk.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
1868	SHIPPING DOCUMENT BL.exe
1868	SHIPPING DOCUMENT BL.exe
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1868	SHIPPING DOCUMENT BL.exe
1868	SHIPPING DOCUMENT BL.exe
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 2708	1868	SHIPPING DOCUMENT BL.exe	30
PID 1868 wrote to memory of 2708	1868	SHIPPING DOCUMENT BL.exe	30
PID 1868 wrote to memory of 2708	1868	SHIPPING DOCUMENT BL.exe	30
PID 1868 wrote to memory of 2708	1868	SHIPPING DOCUMENT BL.exe	30
PID 1868 wrote to memory of 2708	1868	SHIPPING DOCUMENT BL.exe	30
PID 1200 wrote to memory of 2280	1200	Explorer.EXE	32
PID 1200 wrote to memory of 2280	1200	Explorer.EXE	32
PID 1200 wrote to memory of 2280	1200	Explorer.EXE	32
PID 1200 wrote to memory of 2280	1200	Explorer.EXE	32
PID 2280 wrote to memory of 2824	2280	chkdsk.exe	33
PID 2280 wrote to memory of 2824	2280	chkdsk.exe	33
PID 2280 wrote to memory of 2824	2280	chkdsk.exe	33
PID 2280 wrote to memory of 2824	2280	chkdsk.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENT BL.exe
  "C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENT BL.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1868
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENT BL.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2708
- 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:2280
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2824

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

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1200-26-0x0000000007A40000-0x0000000007BB3000-memory.dmp

Filesize
1.4MB

Download
memory/1200-25-0x0000000007A40000-0x0000000007BB3000-memory.dmp

Filesize
1.4MB

Download
memory/1200-23-0x0000000007A40000-0x0000000007BB3000-memory.dmp

Filesize
1.4MB

Download
memory/1200-18-0x0000000004FB0000-0x0000000005090000-memory.dmp

Filesize
896KB

Download
memory/1200-8-0x0000000003B00000-0x0000000003C00000-memory.dmp

Filesize
1024KB

Download
memory/1200-9-0x00000000067E0000-0x0000000006949000-memory.dmp

Filesize
1.4MB

Download
memory/1200-14-0x0000000004FB0000-0x0000000005090000-memory.dmp

Filesize
896KB

Download
memory/1200-13-0x00000000067E0000-0x0000000006949000-memory.dmp

Filesize
1.4MB

Download
memory/1868-2-0x0000000003660000-0x0000000003A60000-memory.dmp

Filesize
4.0MB

Download
memory/2280-16-0x0000000000330000-0x0000000000337000-memory.dmp

Filesize
28KB

Download
memory/2280-15-0x0000000000330000-0x0000000000337000-memory.dmp

Filesize
28KB

Download
memory/2280-17-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2708-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2708-12-0x0000000000220000-0x0000000000235000-memory.dmp

Filesize
84KB

Download
memory/2708-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2708-7-0x0000000000180000-0x0000000000195000-memory.dmp

Filesize
84KB

Download
memory/2708-4-0x0000000000990000-0x0000000000C93000-memory.dmp

Filesize
3.0MB

Download
memory/2708-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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