formbook | 1cf7b621e147e98b0173bfb96d50c77cac94514fcbe4ddff291de56b168c94b4

General

Target

Shipment Notification.exe
Size

339KB
MD5

4051f49c770d335749e6bc72f5aa9c98
SHA1

8a88643c75588960adf3efb1d37ebfd126f25b3c
SHA256

57970209107e8f230a66a3573e21b65ca46a5445554544948af6cdd27f144bf0
SHA512

0b43412e7f471e6dbdb8e94a69ad03cf688b68be5f00aca87d9233833a0c808687235a2b2ccfae5a4db8c32fb7b938b9bc90cfc27829631d56ff3ea3a724b5d0
SSDEEP

6144:AEbkSsHZgpaxPXzWUXGRSK+pzfb6g/XRis76zXn9x1MVgjYf:AW2aSjN2+pKgP49xrY

Score

10^/10

formbook nm5 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

nm5

Decoy

realestatecaffe.com

fetels.com

starvenus.world

dejashannon.com

zali.ltd

shangyuanfushi.com

socialmediagent.com

alphaomega.team

p3lp4.net

narandina.com

equfiaxsecurity2017.com

tribeofchristians.com

yutangke.com

lequf.com

ecabuyukcekmece.net

onlinexclip.com

harmonitza.com

velvetpelvis.com

manlexue.net

curtainspy.com

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/2500-1-0x0000000001E20000-0x0000000001F20000-memory.dmp	formbook
behavioral1/memory/2500-4-0x0000000001E20000-0x0000000001F20000-memory.dmp	formbook
behavioral1/memory/2500-8-0x0000000001E20000-0x0000000001F20000-memory.dmp	formbook
behavioral1/memory/2500-9-0x0000000001E20000-0x0000000001F20000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2704	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2500 set thread context of 1212	2500	Shipment Notification.exe	21
PID 2500 set thread context of 1212	2500	Shipment Notification.exe	21
PID 2820 set thread context of 1212	2820	cmstp.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	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Shipment Notification.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2500	Shipment Notification.exe
2500	Shipment Notification.exe
2500	Shipment Notification.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe
2820	cmstp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2500	Shipment Notification.exe
2500	Shipment Notification.exe
2500	Shipment Notification.exe
2500	Shipment Notification.exe
2820	cmstp.exe
2820	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2500	Shipment Notification.exe
Token: SeDebugPrivilege	2820	cmstp.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1212 wrote to memory of 2820	1212	Explorer.EXE	32
PID 1212 wrote to memory of 2820	1212	Explorer.EXE	32
PID 1212 wrote to memory of 2820	1212	Explorer.EXE	32
PID 1212 wrote to memory of 2820	1212	Explorer.EXE	32
PID 1212 wrote to memory of 2820	1212	Explorer.EXE	32
PID 1212 wrote to memory of 2820	1212	Explorer.EXE	32
PID 1212 wrote to memory of 2820	1212	Explorer.EXE	32
PID 2820 wrote to memory of 2704	2820	cmstp.exe	33
PID 2820 wrote to memory of 2704	2820	cmstp.exe	33
PID 2820 wrote to memory of 2704	2820	cmstp.exe	33
PID 2820 wrote to memory of 2704	2820	cmstp.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Users\Admin\AppData\Local\Temp\Shipment Notification.exe
  "C:\Users\Admin\AppData\Local\Temp\Shipment Notification.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:2500
- 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:2820
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Shipment Notification.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2704

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/1212-6-0x0000000007110000-0x0000000007257000-memory.dmp

Filesize
1.3MB

Download
memory/1212-15-0x0000000006F40000-0x000000000706A000-memory.dmp

Filesize
1.2MB

Download
memory/1212-10-0x0000000007110000-0x0000000007257000-memory.dmp

Filesize
1.3MB

Download
memory/1212-12-0x0000000006F40000-0x000000000706A000-memory.dmp

Filesize
1.2MB

Download
memory/2500-4-0x0000000001E20000-0x0000000001F20000-memory.dmp

Filesize
1024KB

Download
memory/2500-8-0x0000000001E20000-0x0000000001F20000-memory.dmp

Filesize
1024KB

Download
memory/2500-1-0x0000000001E20000-0x0000000001F20000-memory.dmp

Filesize
1024KB

Download
memory/2500-11-0x0000000000320000-0x0000000000334000-memory.dmp

Filesize
80KB

Download
memory/2500-5-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/2500-9-0x0000000001E20000-0x0000000001F20000-memory.dmp

Filesize
1024KB

Download
memory/2500-2-0x00000000024D0000-0x00000000027D3000-memory.dmp

Filesize
3.0MB

Download
memory/2820-13-0x00000000003A0000-0x00000000003B8000-memory.dmp

Filesize
96KB

Download
memory/2820-14-0x00000000003A0000-0x00000000003B8000-memory.dmp

Filesize
96KB

Download

Analysis

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