formbook | 2b3018d5777c7e8f2c12b479165c15b932437314a0a453ab95856488bdc631b9

General

Target

Shipping doc_pdf.exe
Size

1.1MB
MD5

7a59f7d0673ef800595eca1f5938e581
SHA1

570288fba8fd233aa59ca2e760a0af6c055ad8da
SHA256

557c3a0a4676f650fdd41360c3e9161268c7041359e6139e3e7837d2ae1bad0a
SHA512

f58800a8277dc050b3e3402f438415e607b923b8a1416b6df3a9c815f7506c6a9902f1c97aaf6180f003eb0e2fb710ccb1fb184af8ac97914bd67ad6a811b5a5
SSDEEP

24576:nqDEvCTbMWu7rQYlBQcBiT6rprG8aRqBYQhS9tBfdeHwCjk:nTvC/MTQYxsWR7aRqBHs9tBfdows

Score

10^/10

formbook ph01 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ph01

Decoy

23888.sbs

zvcj.sbs

raitpourtrait.net

ibraryfarmclub.online

omputercourses123.live

j88.doctor

atsue-color.click

epitalrentgrup.online

rvvpn.lol

i-signals.tech

cr-phoenix.best

frican-safari.online

c-games.zone

oardetest.online

f4md.shop

uke-saaac.buzz

arze.dev

nvestment-services-49610.bond

izatrip.sbs

ameron-paaaa.buzz

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
behavioral1/memory/856-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/856-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2152-21-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 900 set thread context of 856	900	Shipping doc_pdf.exe	29
PID 856 set thread context of 1208	856	svchost.exe	20
PID 2152 set thread context of 1208	2152	help.exe	20

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	Shipping doc_pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	help.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
900	Shipping doc_pdf.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
856	svchost.exe
856	svchost.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe
2152	help.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
900	Shipping doc_pdf.exe
856	svchost.exe
856	svchost.exe
856	svchost.exe
2152	help.exe
2152	help.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	856	svchost.exe
Token: SeDebugPrivilege	2152	help.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
900	Shipping doc_pdf.exe
900	Shipping doc_pdf.exe
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
900	Shipping doc_pdf.exe
900	Shipping doc_pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 856	900	Shipping doc_pdf.exe	29
PID 900 wrote to memory of 856	900	Shipping doc_pdf.exe	29
PID 900 wrote to memory of 856	900	Shipping doc_pdf.exe	29
PID 900 wrote to memory of 856	900	Shipping doc_pdf.exe	29
PID 900 wrote to memory of 856	900	Shipping doc_pdf.exe	29
PID 1208 wrote to memory of 2152	1208	Explorer.EXE	30
PID 1208 wrote to memory of 2152	1208	Explorer.EXE	30
PID 1208 wrote to memory of 2152	1208	Explorer.EXE	30
PID 1208 wrote to memory of 2152	1208	Explorer.EXE	30
PID 2152 wrote to memory of 2232	2152	help.exe	31
PID 2152 wrote to memory of 2232	2152	help.exe	31
PID 2152 wrote to memory of 2232	2152	help.exe	31
PID 2152 wrote to memory of 2232	2152	help.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Users\Admin\AppData\Local\Temp\Shipping doc_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Shipping doc_pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:900
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Shipping doc_pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:856
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.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:2152
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2232

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/856-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/856-13-0x0000000000A70000-0x0000000000D73000-memory.dmp

Filesize
3.0MB

Download
memory/856-16-0x00000000001D0000-0x00000000001E4000-memory.dmp

Filesize
80KB

Download
memory/856-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/900-11-0x00000000000B0000-0x00000000000B4000-memory.dmp

Filesize
16KB

Download
memory/1208-22-0x0000000004A90000-0x0000000004B5E000-memory.dmp

Filesize
824KB

Download
memory/1208-18-0x0000000004A90000-0x0000000004B5E000-memory.dmp

Filesize
824KB

Download
memory/1208-28-0x0000000004C40000-0x0000000004D91000-memory.dmp

Filesize
1.3MB

Download
memory/1208-29-0x0000000004C40000-0x0000000004D91000-memory.dmp

Filesize
1.3MB

Download
memory/1208-31-0x0000000004C40000-0x0000000004D91000-memory.dmp

Filesize
1.3MB

Download
memory/2152-19-0x00000000009C0000-0x00000000009C6000-memory.dmp

Filesize
24KB

Download
memory/2152-20-0x00000000009C0000-0x00000000009C6000-memory.dmp

Filesize
24KB

Download
memory/2152-21-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

Analysis

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