formbook | 086e659b1784ab08b4694bbb06483d4b54f966697cadffc2f15edceac440b7bc

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28-08-2024 02:35

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General

Target

shipping Arrival_pdf.exe
Size

1.0MB
MD5

4bf5f0c19903569f5dd85fd8067041ea
SHA1

d467e870a79615ad465d2215ca5284e5cb07fbd7
SHA256

086e659b1784ab08b4694bbb06483d4b54f966697cadffc2f15edceac440b7bc
SHA512

310a4fc5c18526c679d21c7f64428a6bec1d3904f971d815370b8bd9e90c35caa268d478d006169b5a0baf7a1ecf94520feeec22f64e9d0b7b8423707d77d6a2
SSDEEP

24576:tAHnh+eWsN3skA4RV1Hom2KXMmHaCdLtHgGbtYNHu5:Mh+ZkldoPK8YaCdGDk

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 4 IoCs

rat

resource	yara_rule
behavioral2/memory/2600-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2600-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2600-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4700-24-0x0000000000FA0000-0x0000000000FCF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2596 set thread context of 2600	2596	shipping Arrival_pdf.exe	91
PID 2600 set thread context of 3460	2600	svchost.exe	56
PID 2600 set thread context of 3460	2600	svchost.exe	56
PID 4700 set thread context of 3460	4700	chkdsk.exe	56

System Location Discovery: System Language Discovery 1 TTPs 4 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 Arrival_pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.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
2596	shipping Arrival_pdf.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe
4700	chkdsk.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2596	shipping Arrival_pdf.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
4700	chkdsk.exe
4700	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeDebugPrivilege	2600	svchost.exe
Token: SeDebugPrivilege	4700	chkdsk.exe
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2596	shipping Arrival_pdf.exe
2596	shipping Arrival_pdf.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2596	shipping Arrival_pdf.exe
2596	shipping Arrival_pdf.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3460	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 2600	2596	shipping Arrival_pdf.exe	91
PID 2596 wrote to memory of 2600	2596	shipping Arrival_pdf.exe	91
PID 2596 wrote to memory of 2600	2596	shipping Arrival_pdf.exe	91
PID 2596 wrote to memory of 2600	2596	shipping Arrival_pdf.exe	91
PID 2600 wrote to memory of 4700	2600	svchost.exe	100
PID 2600 wrote to memory of 4700	2600	svchost.exe	100
PID 2600 wrote to memory of 4700	2600	svchost.exe	100
PID 4700 wrote to memory of 3632	4700	chkdsk.exe	101
PID 4700 wrote to memory of 3632	4700	chkdsk.exe	101
PID 4700 wrote to memory of 3632	4700	chkdsk.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3460
- C:\Users\Admin\AppData\Local\Temp\shipping Arrival_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\shipping Arrival_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:2596
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\shipping Arrival_pdf.exe"
    3⤵
    - 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:2600
  - - C:\Windows\SysWOW64\chkdsk.exe
      "C:\Windows\SysWOW64\chkdsk.exe"
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Enumerates system info in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:4700
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Windows\SysWOW64\svchost.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:3632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2596-10-0x0000000004110000-0x0000000004114000-memory.dmp

Filesize
16KB

Download
memory/2600-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2600-12-0x0000000001600000-0x000000000194A000-memory.dmp

Filesize
3.3MB

Download
memory/2600-15-0x0000000001580000-0x0000000001594000-memory.dmp

Filesize
80KB

Download
memory/2600-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2600-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2600-19-0x0000000003340000-0x0000000003354000-memory.dmp

Filesize
80KB

Download
memory/3460-23-0x0000000008970000-0x0000000008A93000-memory.dmp

Filesize
1.1MB

Download
memory/3460-20-0x0000000008970000-0x0000000008A93000-memory.dmp

Filesize
1.1MB

Download
memory/3460-16-0x0000000009380000-0x00000000094D1000-memory.dmp

Filesize
1.3MB

Download
memory/3460-27-0x0000000007B80000-0x0000000007C5E000-memory.dmp

Filesize
888KB

Download
memory/3460-28-0x0000000007B80000-0x0000000007C5E000-memory.dmp

Filesize
888KB

Download
memory/3460-30-0x0000000007B80000-0x0000000007C5E000-memory.dmp

Filesize
888KB

Download
memory/4700-21-0x0000000000970000-0x000000000097A000-memory.dmp

Filesize
40KB

Download
memory/4700-22-0x0000000000970000-0x000000000097A000-memory.dmp

Filesize
40KB

Download
memory/4700-24-0x0000000000FA0000-0x0000000000FCF000-memory.dmp

Filesize
188KB

Download