formbook | 1259432f41bd872ef92450755035a516b40fcae624473c3dbd64efe7d89987b1

General

Target

Befehl.pdf.exe
Size

397KB
MD5

134e7cb7484eabfbab70b96763bf9051
SHA1

d4c7881c41908a28908a32e46ab01e0f82afcbe4
SHA256

1259432f41bd872ef92450755035a516b40fcae624473c3dbd64efe7d89987b1
SHA512

059ad8b692b8a7b7a92e222bc82caf8b304063a924c75367d42477222185b98f6b31613db1699439a0a9b6b0b7de0ae0c56fea97bc3ec9c039f146b517cfa214
SSDEEP

6144:j1FxhzvZ74J5spMIUYYKUeq7a/WUuufzttMOtQb5:j7v54Jq1B6L7UuuLbM9b5

Score

10^/10

formbook rn10 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

rn10

Decoy

kedai168et.com

mental-olympics.com

pussybuildsstrongbones.net

857691.shop

hisellers.net

exposurecophotography.com

beaded-boutique.net

wednesdayholdings.com

plesacv.xyz

manonlineros.com

a0204.shop

333689g.com

dyprl716h.xyz

pulseirabet.com

fnet.work

bo-2024-001-v1-d1.xyz

ongaurdsecurity.com

giulianacristini.com

miladamani.com

magicalrealmshopkeeper.online

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/668-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/668-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4880-27-0x0000000000590000-0x00000000005BF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4436 set thread context of 668	4436	Befehl.pdf.exe	97
PID 668 set thread context of 3508	668	Befehl.pdf.exe	56
PID 4880 set thread context of 3508	4880	WWAHost.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	Befehl.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WWAHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 40 IoCs

pid	Process
4436	Befehl.pdf.exe
4436	Befehl.pdf.exe
4436	Befehl.pdf.exe
4436	Befehl.pdf.exe
668	Befehl.pdf.exe
668	Befehl.pdf.exe
668	Befehl.pdf.exe
668	Befehl.pdf.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe
4880	WWAHost.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
668	Befehl.pdf.exe
668	Befehl.pdf.exe
668	Befehl.pdf.exe
4880	WWAHost.exe
4880	WWAHost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4436	Befehl.pdf.exe
Token: SeDebugPrivilege	668	Befehl.pdf.exe
Token: SeDebugPrivilege	4880	WWAHost.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3508	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4436 wrote to memory of 1684	4436	Befehl.pdf.exe	96
PID 4436 wrote to memory of 1684	4436	Befehl.pdf.exe	96
PID 4436 wrote to memory of 1684	4436	Befehl.pdf.exe	96
PID 4436 wrote to memory of 1684	4436	Befehl.pdf.exe	96
PID 4436 wrote to memory of 1684	4436	Befehl.pdf.exe	96
PID 4436 wrote to memory of 1684	4436	Befehl.pdf.exe	96
PID 4436 wrote to memory of 668	4436	Befehl.pdf.exe	97
PID 4436 wrote to memory of 668	4436	Befehl.pdf.exe	97
PID 4436 wrote to memory of 668	4436	Befehl.pdf.exe	97
PID 4436 wrote to memory of 668	4436	Befehl.pdf.exe	97
PID 4436 wrote to memory of 668	4436	Befehl.pdf.exe	97
PID 4436 wrote to memory of 668	4436	Befehl.pdf.exe	97
PID 3508 wrote to memory of 4880	3508	Explorer.EXE	100
PID 3508 wrote to memory of 4880	3508	Explorer.EXE	100
PID 3508 wrote to memory of 4880	3508	Explorer.EXE	100
PID 4880 wrote to memory of 5100	4880	WWAHost.exe	102
PID 4880 wrote to memory of 5100	4880	WWAHost.exe	102
PID 4880 wrote to memory of 5100	4880	WWAHost.exe	102

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3508
- C:\Users\Admin\AppData\Local\Temp\Befehl.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Befehl.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:4436
- - C:\Users\Admin\AppData\Local\Temp\Befehl.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Befehl.pdf.exe"
    3⤵
    PID:1684
- - C:\Users\Admin\AppData\Local\Temp\Befehl.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Befehl.pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:668
- C:\Windows\SysWOW64\WWAHost.exe
  "C:\Windows\SysWOW64\WWAHost.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:4880
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Befehl.pdf.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5100

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/668-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/668-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/668-22-0x0000000001340000-0x0000000001354000-memory.dmp

Filesize
80KB

Download
memory/668-19-0x0000000001960000-0x0000000001CAA000-memory.dmp

Filesize
3.3MB

Download
memory/3508-35-0x0000000008F30000-0x0000000009071000-memory.dmp

Filesize
1.3MB

Download
memory/3508-33-0x0000000008F30000-0x0000000009071000-memory.dmp

Filesize
1.3MB

Download
memory/3508-32-0x0000000008F30000-0x0000000009071000-memory.dmp

Filesize
1.3MB

Download
memory/3508-28-0x0000000008B20000-0x0000000008BE1000-memory.dmp

Filesize
772KB

Download
memory/3508-23-0x0000000008B20000-0x0000000008BE1000-memory.dmp

Filesize
772KB

Download
memory/4436-15-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4436-8-0x000000000F7F0000-0x000000000FD94000-memory.dmp

Filesize
5.6MB

Download
memory/4436-12-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4436-13-0x0000000008840000-0x000000000885A000-memory.dmp

Filesize
104KB

Download
memory/4436-14-0x0000000009B70000-0x0000000009B76000-memory.dmp

Filesize
24KB

Download
memory/4436-0-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/4436-10-0x0000000005C10000-0x0000000005C1A000-memory.dmp

Filesize
40KB

Download
memory/4436-18-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4436-9-0x0000000005C90000-0x0000000005D22000-memory.dmp

Filesize
584KB

Download
memory/4436-11-0x0000000005D60000-0x0000000005D66000-memory.dmp

Filesize
24KB

Download
memory/4436-7-0x00000000098B0000-0x0000000009B72000-memory.dmp

Filesize
2.8MB

Download
memory/4436-5-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4436-1-0x0000000000CC0000-0x0000000000D2A000-memory.dmp

Filesize
424KB

Download
memory/4436-2-0x00000000051B0000-0x000000000524C000-memory.dmp

Filesize
624KB

Download
memory/4436-3-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4436-4-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/4880-27-0x0000000000590000-0x00000000005BF000-memory.dmp

Filesize
188KB

Download
memory/4880-26-0x0000000000B30000-0x0000000000C0C000-memory.dmp

Filesize
880KB

Download
memory/4880-24-0x0000000000B30000-0x0000000000C0C000-memory.dmp

Filesize
880KB

Download

Analysis

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