formbook | c66ec112e6247a7dd5171f17a0559695d0adc051b285ed2df42fe738c83efe94

Analysis

max time kernel
148s
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
06-08-2024 21:01

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General

Target

MalwareBazaar.exe
Size

1.1MB
MD5

aeffc423b2e483ccad4ffef8ff7195a7
SHA1

85b40f249df8b988bdf42aad6be931d0fcacf79b
SHA256

c66ec112e6247a7dd5171f17a0559695d0adc051b285ed2df42fe738c83efe94
SHA512

692c07a901cc99be0d0b0f2d7f1272a9a6541a531494f34d43338a3e6beec9a3b6a3fbe9e42d2506459599dc7f17f59530eee893660788f08ec995f39e66cc9e
SSDEEP

24576:JqDEvCTbMWu7rQYlBQcBiT6rprG8a3DtLxBLGV/:JTvC/MTQYxsWR7a3Dd+

Score

10^/10

formbook jd21 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

jd21

Decoy

bankownedproperties-0.bond

slab-leak-repair-74697.bond

tvtwenty20sr.top

scw-iot.net

circusenergy.online

030002787.xyz

propertiesforrentus11.bond

defi-banksystem.online

gkbet168.net

joycasino-ed46.top

sctttc-or.top

borghardt.xyz

therealtorpeddler.info

macexpress.online

bobbyharvey.store

dating-dd-de.info

thetrue.one

alqahtani.site

mahlubini.africa

truck-driver-jobs-42274.bond

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/1892-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1892-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1892-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1648-25-0x0000000000110000-0x000000000013F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3136 set thread context of 1892	3136	MalwareBazaar.exe	86
PID 1892 set thread context of 3444	1892	svchost.exe	56
PID 1892 set thread context of 3444	1892	svchost.exe	56
PID 1648 set thread context of 3444	1648	raserver.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MalwareBazaar.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
1892	svchost.exe
1892	svchost.exe
1892	svchost.exe
1892	svchost.exe
1892	svchost.exe
1892	svchost.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe
1648	raserver.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
3136	MalwareBazaar.exe
1892	svchost.exe
1892	svchost.exe
1892	svchost.exe
1892	svchost.exe
1648	raserver.exe
1648	raserver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1892	svchost.exe
Token: SeDebugPrivilege	1648	raserver.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3136	MalwareBazaar.exe
3136	MalwareBazaar.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3136	MalwareBazaar.exe
3136	MalwareBazaar.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3444	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3136 wrote to memory of 1892	3136	MalwareBazaar.exe	86
PID 3136 wrote to memory of 1892	3136	MalwareBazaar.exe	86
PID 3136 wrote to memory of 1892	3136	MalwareBazaar.exe	86
PID 3136 wrote to memory of 1892	3136	MalwareBazaar.exe	86
PID 1892 wrote to memory of 1648	1892	svchost.exe	94
PID 1892 wrote to memory of 1648	1892	svchost.exe	94
PID 1892 wrote to memory of 1648	1892	svchost.exe	94
PID 1648 wrote to memory of 4956	1648	raserver.exe	95
PID 1648 wrote to memory of 4956	1648	raserver.exe	95
PID 1648 wrote to memory of 4956	1648	raserver.exe	95

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
PID:3444
- C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
  "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.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:3136
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.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:1892
  - - C:\Windows\SysWOW64\raserver.exe
      "C:\Windows\SysWOW64\raserver.exe"
      4⤵
      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:1648
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Windows\SysWOW64\svchost.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:4956
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2076
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2612
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:3004
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1652
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:436
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2488
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:856

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/1648-22-0x0000000000F40000-0x0000000000F5F000-memory.dmp

Filesize
124KB

Download
memory/1648-25-0x0000000000110000-0x000000000013F000-memory.dmp

Filesize
188KB

Download
memory/1648-24-0x0000000000F40000-0x0000000000F5F000-memory.dmp

Filesize
124KB

Download
memory/1892-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1892-13-0x0000000000A00000-0x0000000000D4A000-memory.dmp

Filesize
3.3MB

Download
memory/1892-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1892-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1892-20-0x0000000002B80000-0x0000000002B95000-memory.dmp

Filesize
84KB

Download
memory/1892-16-0x0000000000DD0000-0x0000000000DE5000-memory.dmp

Filesize
84KB

Download
memory/3136-11-0x0000000001CD0000-0x0000000001CD4000-memory.dmp

Filesize
16KB

Download
memory/3444-21-0x0000000008FA0000-0x00000000090DA000-memory.dmp

Filesize
1.2MB

Download
memory/3444-17-0x00000000089A0000-0x0000000008AFA000-memory.dmp

Filesize
1.4MB

Download
memory/3444-26-0x00000000089A0000-0x0000000008AFA000-memory.dmp

Filesize
1.4MB

Download
memory/3444-28-0x0000000008FA0000-0x00000000090DA000-memory.dmp

Filesize
1.2MB

Download
memory/3444-30-0x0000000004940000-0x0000000004A05000-memory.dmp

Filesize
788KB

Download
memory/3444-31-0x0000000004940000-0x0000000004A05000-memory.dmp

Filesize
788KB

Download
memory/3444-34-0x0000000004940000-0x0000000004A05000-memory.dmp

Filesize
788KB

Download