formbook | 3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f

General

Target

3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe
Size

1.1MB
MD5

2dcf6ba3617009251149bf80ff92ae04
SHA1

5e20666eeb55bc5125a73c61481b0999b1030b63
SHA256

3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f
SHA512

502eee3c93e6daa4b65da5cd0ad4a3b2b93b6e05c7ed5a557151cdc9c5316c9bdb7395b01b46e5ec59793619bf5a0452c42efecb9fb8f6897653addfef8ed164
SSDEEP

24576:YqDEvCTbMWu7rQYlBQcBiT6rprG8ac59xpJtvf:YTvC/MTQYxsWR7acDxpJZ

Score

10^/10

formbook at22 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

at22

Decoy

etween-us.online

sphaleia.net

ental-implants-78350.bond

q4a.lat

commerce-97292.bond

linds-curtains-38811.bond

gyptevoyages.net

landofigueroa-abogados.net

cuitis.xyz

hantom.city

yzk.online

afikabmedan.store

ome-remodeling-67289.bond

ebpage-klzdxrhnazi.shop

eject.lol

rismart.xyz

nfluencer-marketing-72407.bond

ksolotl.xyz

ebsbayrntilrmizin93.xyz

pps-75399.bond

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/3124-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3124-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3976-15-0x0000000000C00000-0x0000000000C2F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4588 set thread context of 3124	4588	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe	84
PID 3124 set thread context of 3452	3124	svchost.exe	56
PID 3976 set thread context of 3452	3976	NETSTAT.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	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
3976	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
3124	svchost.exe
3124	svchost.exe
3124	svchost.exe
3124	svchost.exe
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE
3976	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4588	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe
3124	svchost.exe
3124	svchost.exe
3124	svchost.exe
3976	NETSTAT.EXE
3976	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3124	svchost.exe
Token: SeDebugPrivilege	3976	NETSTAT.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4588	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe
4588	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe
4588	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4588	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe
4588	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe
4588	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4588 wrote to memory of 3124	4588	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe	84
PID 4588 wrote to memory of 3124	4588	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe	84
PID 4588 wrote to memory of 3124	4588	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe	84
PID 4588 wrote to memory of 3124	4588	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe	84
PID 3452 wrote to memory of 3976	3452	Explorer.EXE	85
PID 3452 wrote to memory of 3976	3452	Explorer.EXE	85
PID 3452 wrote to memory of 3976	3452	Explorer.EXE	85
PID 3976 wrote to memory of 4456	3976	NETSTAT.EXE	94
PID 3976 wrote to memory of 4456	3976	NETSTAT.EXE	94
PID 3976 wrote to memory of 4456	3976	NETSTAT.EXE	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Users\Admin\AppData\Local\Temp\3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe
  "C:\Users\Admin\AppData\Local\Temp\3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:4588
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3124
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3976
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4456

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/3124-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3124-8-0x0000000001300000-0x000000000164A000-memory.dmp

Filesize
3.3MB

Download
memory/3124-11-0x0000000001770000-0x0000000001785000-memory.dmp

Filesize
84KB

Download
memory/3124-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3452-12-0x0000000002780000-0x0000000002878000-memory.dmp

Filesize
992KB

Download
memory/3452-19-0x00000000080D0000-0x0000000008247000-memory.dmp

Filesize
1.5MB

Download
memory/3452-20-0x00000000080D0000-0x0000000008247000-memory.dmp

Filesize
1.5MB

Download
memory/3452-22-0x00000000080D0000-0x0000000008247000-memory.dmp

Filesize
1.5MB

Download
memory/3976-13-0x0000000000C40000-0x0000000000C4B000-memory.dmp

Filesize
44KB

Download
memory/3976-14-0x0000000000C40000-0x0000000000C4B000-memory.dmp

Filesize
44KB

Download
memory/3976-15-0x0000000000C00000-0x0000000000C2F000-memory.dmp

Filesize
188KB

Download
memory/4588-6-0x00000000011D0000-0x00000000015D0000-memory.dmp

Filesize
4.0MB

Download

Analysis

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