formbook | cbfdeb71b1ac7005db8f731de7bfea8471ef47c2ab2e1d0414719c549da8c3c1

Analysis

max time kernel
147s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-11-2024 14:08

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General

Target

New Inquiry INQ24561.exe
Size

730KB
MD5

242e931a4997047fa504b494b98dc761
SHA1

e1f2a5c2183c4c2ef83af5665a8786b2cde5e7f0
SHA256

cbfdeb71b1ac7005db8f731de7bfea8471ef47c2ab2e1d0414719c549da8c3c1
SHA512

12a6b8315707164c3f62085976c4cc2f51e221d94bb5a1b45d31bd196d5a20ed2f2aa3a4a02539a19479cd0975e3baa54ade6901b9819d0928e899ec94d2fa81
SSDEEP

12288:/JDWYTRyPVZvXPVrDn+08g5QJm5xymVD75p6c0LKhrX2:hDWYTRy/V/nLP5Q8D75s4hrm

Score

10^/10

formbook md49 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

md49

Decoy

enithpro.shop

utozeed.agency

ornpicsbd.xyz

82yjj301.top

kphone.online

3ccha73hdl5.shop

seinow.online

usurrofest.info

2ads2s2.top

oritskul.net

etlivecasino.bet

erts.navy

anieubezpieczenia.online

dyhph1020pm.top

paceglide.space

ibmedia.net

arwyking.icu

soriaticarthritis101.today

earopia.shop

gctg2qt4h.top

Signatures

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

Formbook payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4416-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4416-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/924-21-0x00000000009B0000-0x00000000009DF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

New Inquiry INQ24561.exeNew Inquiry INQ24561.exemsdt.exe

description	pid	Process	procid_target
PID 4944 set thread context of 4416	4944	New Inquiry INQ24561.exe	97
PID 4416 set thread context of 3556	4416	New Inquiry INQ24561.exe	56
PID 924 set thread context of 3556	924	msdt.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

Processes:

New Inquiry INQ24561.exemsdt.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	New Inquiry INQ24561.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 56 IoCs

Processes:

New Inquiry INQ24561.exemsdt.exe

pid	Process
4416	New Inquiry INQ24561.exe
4416	New Inquiry INQ24561.exe
4416	New Inquiry INQ24561.exe
4416	New Inquiry INQ24561.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe
924	msdt.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

New Inquiry INQ24561.exemsdt.exe

pid	Process
4416	New Inquiry INQ24561.exe
4416	New Inquiry INQ24561.exe
4416	New Inquiry INQ24561.exe
924	msdt.exe
924	msdt.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

New Inquiry INQ24561.exemsdt.exe

description	pid	Process
Token: SeDebugPrivilege	4416	New Inquiry INQ24561.exe
Token: SeDebugPrivilege	924	msdt.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid	Process
3556	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

New Inquiry INQ24561.exeExplorer.EXEmsdt.exe

description	pid	Process	procid_target
PID 4944 wrote to memory of 4416	4944	New Inquiry INQ24561.exe	97
PID 4944 wrote to memory of 4416	4944	New Inquiry INQ24561.exe	97
PID 4944 wrote to memory of 4416	4944	New Inquiry INQ24561.exe	97
PID 4944 wrote to memory of 4416	4944	New Inquiry INQ24561.exe	97
PID 4944 wrote to memory of 4416	4944	New Inquiry INQ24561.exe	97
PID 4944 wrote to memory of 4416	4944	New Inquiry INQ24561.exe	97
PID 3556 wrote to memory of 924	3556	Explorer.EXE	98
PID 3556 wrote to memory of 924	3556	Explorer.EXE	98
PID 3556 wrote to memory of 924	3556	Explorer.EXE	98
PID 924 wrote to memory of 4920	924	msdt.exe	99
PID 924 wrote to memory of 4920	924	msdt.exe	99
PID 924 wrote to memory of 4920	924	msdt.exe	99

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3556
- C:\Users\Admin\AppData\Local\Temp\New Inquiry INQ24561.exe
  "C:\Users\Admin\AppData\Local\Temp\New Inquiry INQ24561.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4944
- - C:\Users\Admin\AppData\Local\Temp\New Inquiry INQ24561.exe
    "C:\Users\Admin\AppData\Local\Temp\New Inquiry INQ24561.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4416
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.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:924
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\New Inquiry INQ24561.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4920

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/924-21-0x00000000009B0000-0x00000000009DF000-memory.dmp

Filesize
188KB

Download
memory/924-20-0x0000000000030000-0x0000000000087000-memory.dmp

Filesize
348KB

Download
memory/924-19-0x0000000000030000-0x0000000000087000-memory.dmp

Filesize
348KB

Download
memory/3556-29-0x00000000091A0000-0x00000000092EC000-memory.dmp

Filesize
1.3MB

Download
memory/3556-27-0x00000000091A0000-0x00000000092EC000-memory.dmp

Filesize
1.3MB

Download
memory/3556-26-0x00000000091A0000-0x00000000092EC000-memory.dmp

Filesize
1.3MB

Download
memory/3556-22-0x0000000009050000-0x00000000091A0000-memory.dmp

Filesize
1.3MB

Download
memory/3556-18-0x0000000009050000-0x00000000091A0000-memory.dmp

Filesize
1.3MB

Download
memory/4416-14-0x00000000013F0000-0x000000000173A000-memory.dmp

Filesize
3.3MB

Download
memory/4416-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4416-17-0x0000000000F30000-0x0000000000F45000-memory.dmp

Filesize
84KB

Download
memory/4416-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4944-6-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/4944-13-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/4944-10-0x0000000003180000-0x00000000031F6000-memory.dmp

Filesize
472KB

Download
memory/4944-9-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/4944-8-0x000000007452E000-0x000000007452F000-memory.dmp

Filesize
4KB

Download
memory/4944-7-0x0000000005C60000-0x0000000005C7C000-memory.dmp

Filesize
112KB

Download
memory/4944-0-0x000000007452E000-0x000000007452F000-memory.dmp

Filesize
4KB

Download
memory/4944-5-0x0000000005A80000-0x0000000005B1C000-memory.dmp

Filesize
624KB

Download
memory/4944-4-0x0000000005750000-0x000000000575A000-memory.dmp

Filesize
40KB

Download
memory/4944-3-0x00000000057C0000-0x0000000005852000-memory.dmp

Filesize
584KB

Download
memory/4944-2-0x0000000005CD0000-0x0000000006274000-memory.dmp

Filesize
5.6MB

Download
memory/4944-1-0x0000000000CD0000-0x0000000000D8C000-memory.dmp

Filesize
752KB

Download