formbook | 16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-12-2024 19:53

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General

Target

16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe
Size

1.1MB
MD5

dd8249ab4c9e8a8e4aac3290a2fbad2a
SHA1

75f7fd605e1d035e04649a3d865ef8d8ca713e63
SHA256

16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f
SHA512

304a81717dc609b924b921186c43a50f257502d6729b196f8e7341d324e56267e58a3a055b2b279ca269060b020022f154b86555f60666a9a6f8cc3add38925b
SSDEEP

24576:bu6J33O0c+JY5UZ+XC0kGso6FaduI4+K0vJWY:Vu0c++OCvkGs9Faduv108Y

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/4992-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4992-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1372-16-0x0000000000600000-0x000000000062F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3960 set thread context of 4992	3960	16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe	83
PID 4992 set thread context of 3508	4992	svchost.exe	56
PID 1372 set thread context of 3508	1372	explorer.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	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4992	svchost.exe
4992	svchost.exe
4992	svchost.exe
4992	svchost.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe
1372	explorer.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
3960	16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe
4992	svchost.exe
4992	svchost.exe
4992	svchost.exe
1372	explorer.exe
1372	explorer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4992	svchost.exe
Token: SeDebugPrivilege	1372	explorer.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3960	16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe
3960	16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe
3960	16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3960	16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe
3960	16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe
3960	16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3960 wrote to memory of 4992	3960	16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe	83
PID 3960 wrote to memory of 4992	3960	16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe	83
PID 3960 wrote to memory of 4992	3960	16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe	83
PID 3960 wrote to memory of 4992	3960	16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe	83
PID 3508 wrote to memory of 1372	3508	Explorer.EXE	84
PID 3508 wrote to memory of 1372	3508	Explorer.EXE	84
PID 3508 wrote to memory of 1372	3508	Explorer.EXE	84
PID 1372 wrote to memory of 3536	1372	explorer.exe	86
PID 1372 wrote to memory of 3536	1372	explorer.exe	86
PID 1372 wrote to memory of 3536	1372	explorer.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3508
- C:\Users\Admin\AppData\Local\Temp\16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe
  "C:\Users\Admin\AppData\Local\Temp\16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.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:3960
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\16fcfaa35b847c585a964a7e862e7321e71ec098eaf6d6a33721cf113ddb159f.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4992
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.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:1372
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1372-13-0x0000000000E30000-0x0000000001263000-memory.dmp

Filesize
4.2MB

Download
memory/1372-16-0x0000000000600000-0x000000000062F000-memory.dmp

Filesize
188KB

Download
memory/1372-15-0x0000000000E30000-0x0000000001263000-memory.dmp

Filesize
4.2MB

Download
memory/3508-17-0x00000000088A0000-0x0000000008A3A000-memory.dmp

Filesize
1.6MB

Download
memory/3508-12-0x00000000088A0000-0x0000000008A3A000-memory.dmp

Filesize
1.6MB

Download
memory/3508-21-0x0000000008A40000-0x0000000008B7E000-memory.dmp

Filesize
1.2MB

Download
memory/3508-22-0x0000000008A40000-0x0000000008B7E000-memory.dmp

Filesize
1.2MB

Download
memory/3508-24-0x0000000008A40000-0x0000000008B7E000-memory.dmp

Filesize
1.2MB

Download
memory/3960-6-0x0000000001960000-0x0000000001D60000-memory.dmp

Filesize
4.0MB

Download
memory/4992-11-0x0000000002110000-0x0000000002125000-memory.dmp

Filesize
84KB

Download
memory/4992-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4992-8-0x0000000001C00000-0x0000000001F4A000-memory.dmp

Filesize
3.3MB

Download
memory/4992-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download