formbook | b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 02:16

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe
Size

550KB
MD5

304ae39e62244a946e1cef21393fe3b7
SHA1

6157b6191e3df5d1a01776cadd0e3988e7597bc8
SHA256

b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618
SHA512

8d765cc52575334ecf36256eb8ce0c6a2061b43b0d959888542111859b864cbe4227fdbb567a5db881fc97b1e19999e0c57b3b4cd875eea9264ea4715a2234ed
SSDEEP

12288:5MUgm/3dE/fGiCNGiTVTsdrE0V92fO/lk9onzNXxn2ive:5M2//iCRSdrZV92f79onzNXEive

Score

10^/10

formbook giok discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

giok

Decoy

royaltysplit.xyz

home-remodeling-32327.bond

ocosoap.download

mx51pbk5z3.top

sapidermen154.buzz

always23082025.info

jencodiahcp.net

psychologist-therapy-13104.bond

okigoods.online

posedon.online

ryclegalpartners.info

seek-zapatosenlinea-cl.info

xataa.info

vitalityyvault.online

hallice732.xyz

snspleak.info

ilbrentdigitalx.info

breast-implants-17988.bond

subedisaurav.site

instamoney.website

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

resource	yara_rule
behavioral1/memory/2824-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2824-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2736-27-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Adds policy Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1488793075-819845221-1497111674-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	chkdsk.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\OBFPJLW8 = "C:\\Program Files (x86)\\Windows Mail\\wab.exe"	chkdsk.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2012 set thread context of 2824	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	34
PID 2824 set thread context of 1184	2824	wab.exe	21
PID 2736 set thread context of 1184	2736	chkdsk.exe	21
PID 2736 set thread context of 2860	2736	chkdsk.exe	33

System Location Discovery: System Language Discovery 1 TTPs 1 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	chkdsk.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 Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1488793075-819845221-1497111674-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
2824	wab.exe
2824	wab.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe

Suspicious behavior: MapViewOfSection 9 IoCs

pid	Process
2824	wab.exe
2824	wab.exe
2824	wab.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe
2736	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe
Token: SeDebugPrivilege	2824	wab.exe
Token: SeShutdownPrivilege	1184	Explorer.EXE
Token: SeDebugPrivilege	2736	chkdsk.exe
Token: SeShutdownPrivilege	1184	Explorer.EXE
Token: SeShutdownPrivilege	1184	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1184	Explorer.EXE

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 2720	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	31
PID 2012 wrote to memory of 2720	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	31
PID 2012 wrote to memory of 2720	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	31
PID 2012 wrote to memory of 2720	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	31
PID 2012 wrote to memory of 2856	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	32
PID 2012 wrote to memory of 2856	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	32
PID 2012 wrote to memory of 2856	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	32
PID 2012 wrote to memory of 2856	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	32
PID 2012 wrote to memory of 2856	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	32
PID 2012 wrote to memory of 2860	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	33
PID 2012 wrote to memory of 2860	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	33
PID 2012 wrote to memory of 2860	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	33
PID 2012 wrote to memory of 2860	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	33
PID 2012 wrote to memory of 2860	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	33
PID 2012 wrote to memory of 2824	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	34
PID 2012 wrote to memory of 2824	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	34
PID 2012 wrote to memory of 2824	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	34
PID 2012 wrote to memory of 2824	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	34
PID 2012 wrote to memory of 2824	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	34
PID 2012 wrote to memory of 2824	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	34
PID 2012 wrote to memory of 2824	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	34
PID 2012 wrote to memory of 2772	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	35
PID 2012 wrote to memory of 2772	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	35
PID 2012 wrote to memory of 2772	2012	b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe	35
PID 1184 wrote to memory of 2736	1184	Explorer.EXE	36
PID 1184 wrote to memory of 2736	1184	Explorer.EXE	36
PID 1184 wrote to memory of 2736	1184	Explorer.EXE	36
PID 1184 wrote to memory of 2736	1184	Explorer.EXE	36
PID 2736 wrote to memory of 1628	2736	chkdsk.exe	37
PID 2736 wrote to memory of 1628	2736	chkdsk.exe	37
PID 2736 wrote to memory of 1628	2736	chkdsk.exe	37
PID 2736 wrote to memory of 1628	2736	chkdsk.exe	37
PID 2736 wrote to memory of 1628	2736	chkdsk.exe	37

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Users\Admin\AppData\Local\Temp\b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe
  "C:\Users\Admin\AppData\Local\Temp\b7c048465cfc09a8649043c0571a84d1edff4a8509e80dc55470fbbc83f0c618.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2012
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
    3⤵
    PID:2720
- - C:\Windows\System32\calc.exe
    "C:\Windows\System32\calc.exe"
    3⤵
    PID:2856
- - C:\Windows\System32\notepad.exe
    "C:\Windows\System32\notepad.exe"
    3⤵
    PID:2860
- - C:\Program Files (x86)\Windows Mail\wab.exe
    "C:\Program Files (x86)\Windows Mail\wab.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2824
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 2012 -s 672
    3⤵
    PID:2772
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Adds policy Run key to start application
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2736
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\9-LBS3SE\9-Llogim.jpeg

Filesize
87KB

MD5
37df330f6f115d7de002294e5d72a888

SHA1
71575c9a21353b6293dd094eb831ba0eba66784d

SHA256
6c79eed08a651f14ec220c38bca5b97bc087df463d528aab76ea97c2401baebe

SHA512
f56fef2179bc074ad6161af18211f9d3d5d177b2595e96c32385089cd1dbc7ddc295a96a6e7e932cd862e19c88a7fdee397731c235667237028f3538df40eec6

Download Submit
C:\Users\Admin\AppData\Roaming\9-LBS3SE\9-Llogrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\9-LBS3SE\9-Llogri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\9-LBS3SE\9-Llogrv.ini

Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
memory/1184-45-0x0000000006A80000-0x0000000006BB0000-memory.dmp

Filesize
1.2MB

Download
memory/1184-39-0x0000000006A80000-0x0000000006BB0000-memory.dmp

Filesize
1.2MB

Download
memory/1184-22-0x0000000006710000-0x0000000006850000-memory.dmp

Filesize
1.2MB

Download
memory/1184-38-0x0000000006A80000-0x0000000006BB0000-memory.dmp

Filesize
1.2MB

Download
memory/1184-32-0x0000000006710000-0x0000000006850000-memory.dmp

Filesize
1.2MB

Download
memory/2012-31-0x000007FEF6160000-0x000007FEF6B4C000-memory.dmp

Filesize
9.9MB

Download
memory/2012-3-0x000007FEF6160000-0x000007FEF6B4C000-memory.dmp

Filesize
9.9MB

Download
memory/2012-2-0x0000000001F20000-0x0000000001FA8000-memory.dmp

Filesize
544KB

Download
memory/2012-1-0x0000000000900000-0x000000000098C000-memory.dmp

Filesize
560KB

Download
memory/2012-0-0x000007FEF6163000-0x000007FEF6164000-memory.dmp

Filesize
4KB

Download
memory/2012-25-0x000007FEF6163000-0x000007FEF6164000-memory.dmp

Filesize
4KB

Download
memory/2012-26-0x000007FEF6160000-0x000007FEF6B4C000-memory.dmp

Filesize
9.9MB

Download
memory/2736-23-0x0000000000580000-0x0000000000587000-memory.dmp

Filesize
28KB

Download
memory/2736-27-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2736-24-0x0000000000580000-0x0000000000587000-memory.dmp

Filesize
28KB

Download
memory/2824-21-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/2824-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2824-18-0x0000000000700000-0x0000000000A03000-memory.dmp

Filesize
3.0MB

Download
memory/2824-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2824-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2856-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2856-4-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download