formbook | c99c9f29ff7e94a3e83af1ca7872deace5c089b7913781c8d35f8e3134d34da0

General

Target

pzUHRx6alP7phBn.exe
Size

571KB
MD5

312f45637432b1efec858ed32bdef462
SHA1

b23e75b94b84b31edaa0793b1228c444254effa2
SHA256

af4f28ed9e5d8205220c60f42668e6576233f54885c63fcaf43c2315328f45f1
SHA512

ca43f80d928b567803aa1597469a5fcc8cae580aa1e8a4c26d6ed248eb8e2414b56c11a23452679d60888d5f31344a0eaa7284168c38b3676475235561de7ad3
SSDEEP

6144:ohYWUks3Gmjob1xiDu8lJ/NY9m6xYcqhB01kDryaKngqBi+/baDlXuS+hwtTuKS6:6cSxiDUQcqTKtBF/kN2mflW+X0cV

Score

10^/10

formbook b31a discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

b31a

Decoy

enjamin-paaac.buzz

mail-marketing-40950.bond

pusems28-post.cyou

hindo.top

ruck-company-be.today

asinos-deutschland.net

ewancash.boats

etdopovo.casino

rcher-saaac.buzz

871166.vip

manuel.app

g3yqo.shop

-9way.xyz

qawgytfexe.bond

iefi6834.vip

ental-health-35901.bond

idat-merkez18.top

rojectleadzone.website

lirudolph.top

migloballlc.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/2716-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2716-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2716-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2592-26-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2732	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2644 set thread context of 2716	2644	pzUHRx6alP7phBn.exe	30
PID 2716 set thread context of 1196	2716	pzUHRx6alP7phBn.exe	21
PID 2716 set thread context of 1196	2716	pzUHRx6alP7phBn.exe	21
PID 2592 set thread context of 1196	2592	systray.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	pzUHRx6alP7phBn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2644	pzUHRx6alP7phBn.exe
2644	pzUHRx6alP7phBn.exe
2716	pzUHRx6alP7phBn.exe
2716	pzUHRx6alP7phBn.exe
2716	pzUHRx6alP7phBn.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe
2592	systray.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2716	pzUHRx6alP7phBn.exe
2716	pzUHRx6alP7phBn.exe
2716	pzUHRx6alP7phBn.exe
2716	pzUHRx6alP7phBn.exe
2592	systray.exe
2592	systray.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2644	pzUHRx6alP7phBn.exe
Token: SeDebugPrivilege	2716	pzUHRx6alP7phBn.exe
Token: SeDebugPrivilege	2592	systray.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 2716	2644	pzUHRx6alP7phBn.exe	30
PID 2644 wrote to memory of 2716	2644	pzUHRx6alP7phBn.exe	30
PID 2644 wrote to memory of 2716	2644	pzUHRx6alP7phBn.exe	30
PID 2644 wrote to memory of 2716	2644	pzUHRx6alP7phBn.exe	30
PID 2644 wrote to memory of 2716	2644	pzUHRx6alP7phBn.exe	30
PID 2644 wrote to memory of 2716	2644	pzUHRx6alP7phBn.exe	30
PID 2644 wrote to memory of 2716	2644	pzUHRx6alP7phBn.exe	30
PID 1196 wrote to memory of 2592	1196	Explorer.EXE	31
PID 1196 wrote to memory of 2592	1196	Explorer.EXE	31
PID 1196 wrote to memory of 2592	1196	Explorer.EXE	31
PID 1196 wrote to memory of 2592	1196	Explorer.EXE	31
PID 2592 wrote to memory of 2732	2592	systray.exe	32
PID 2592 wrote to memory of 2732	2592	systray.exe	32
PID 2592 wrote to memory of 2732	2592	systray.exe	32
PID 2592 wrote to memory of 2732	2592	systray.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\pzUHRx6alP7phBn.exe
  "C:\Users\Admin\AppData\Local\Temp\pzUHRx6alP7phBn.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2644
- - C:\Users\Admin\AppData\Local\Temp\pzUHRx6alP7phBn.exe
    "C:\Users\Admin\AppData\Local\Temp\pzUHRx6alP7phBn.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2716
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.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:2592
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\pzUHRx6alP7phBn.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2732

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/1196-27-0x0000000006790000-0x00000000068C6000-memory.dmp

Filesize
1.2MB

Download
memory/1196-22-0x0000000006790000-0x00000000068C6000-memory.dmp

Filesize
1.2MB

Download
memory/1196-21-0x0000000005150000-0x000000000526B000-memory.dmp

Filesize
1.1MB

Download
memory/1196-17-0x0000000005150000-0x000000000526B000-memory.dmp

Filesize
1.1MB

Download
memory/2592-23-0x0000000000C60000-0x0000000000C65000-memory.dmp

Filesize
20KB

Download
memory/2592-25-0x0000000000C60000-0x0000000000C65000-memory.dmp

Filesize
20KB

Download
memory/2592-26-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2644-3-0x00000000009E0000-0x00000000009EE000-memory.dmp

Filesize
56KB

Download
memory/2644-6-0x0000000000D70000-0x0000000000DE6000-memory.dmp

Filesize
472KB

Download
memory/2644-5-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-4-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/2644-12-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-0-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/2644-2-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-1-0x0000000001350000-0x00000000013E4000-memory.dmp

Filesize
592KB

Download
memory/2716-13-0x0000000000850000-0x0000000000B53000-memory.dmp

Filesize
3.0MB

Download
memory/2716-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2716-16-0x00000000002D0000-0x00000000002E4000-memory.dmp

Filesize
80KB

Download
memory/2716-20-0x00000000003A0000-0x00000000003B4000-memory.dmp

Filesize
80KB

Download
memory/2716-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2716-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2716-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2716-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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