formbook | dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-01-2025 02:01

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General

Target

rRFQ_BIDLET-PO772917811_PROPOSL_BG_AD____PDF.exe
Size

1.4MB
MD5

289754998d1520e2bec7190452c464ac
SHA1

a25755aa21ff2512d7f0b19af804c7ca81729767
SHA256

dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1
SHA512

03e640719eee50a99cdcfce411c940339d5f0142beb4eba5d081a9ac493059fc44be9971f1e78750584cff478941f04c6ea3d61468f8dd903a6636324353ab08
SSDEEP

24576:3qDEvCTbMWu7rQYlBQcBiT6rprG8a1pSsnwcKYQkZrUEI5DafK:3TvC/MTQYxsWR7a1Isn+k6EI

Score

10^/10

formbook bs84 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bs84

Decoy

ehuatang.quest

mart-healthcare.solutions

arehouse-inventory-59593.bond

rumpjokes.net

oonlightshadow.store

odernoob.website

sdmedia.net

0k21l6z.xyz

kwovenart.shop

chvb.bid

06ks28.buzz

grexvc.online

unnycdn02.shop

ettingitgonejunk.net

lubmango.store

ustjump.xyz

ofiveuss.store

aahasti-inter5.rest

etclcg.business

ai365.xyz

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
behavioral2/memory/1596-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1596-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1592-20-0x0000000000B10000-0x0000000000B3F000-memory.dmp	formbook

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\overrough.vbs	overrough.exe

Executes dropped EXE 1 IoCs

pid	Process
4476	overrough.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x0007000000023c87-5.dat	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4476 set thread context of 1596	4476	overrough.exe	84
PID 1596 set thread context of 3476	1596	svchost.exe	56
PID 1592 set thread context of 3476	1592	systray.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	rRFQ_BIDLET-PO772917811_PROPOSL_BG_AD____PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	overrough.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
1596	svchost.exe
1596	svchost.exe
1596	svchost.exe
1596	svchost.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4476	overrough.exe
1596	svchost.exe
1596	svchost.exe
1596	svchost.exe
1592	systray.exe
1592	systray.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1596	svchost.exe
Token: SeDebugPrivilege	1592	systray.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
2844	rRFQ_BIDLET-PO772917811_PROPOSL_BG_AD____PDF.exe
2844	rRFQ_BIDLET-PO772917811_PROPOSL_BG_AD____PDF.exe
4476	overrough.exe
4476	overrough.exe
3476	Explorer.EXE
3476	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2844	rRFQ_BIDLET-PO772917811_PROPOSL_BG_AD____PDF.exe
2844	rRFQ_BIDLET-PO772917811_PROPOSL_BG_AD____PDF.exe
4476	overrough.exe
4476	overrough.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 4476	2844	rRFQ_BIDLET-PO772917811_PROPOSL_BG_AD____PDF.exe	83
PID 2844 wrote to memory of 4476	2844	rRFQ_BIDLET-PO772917811_PROPOSL_BG_AD____PDF.exe	83
PID 2844 wrote to memory of 4476	2844	rRFQ_BIDLET-PO772917811_PROPOSL_BG_AD____PDF.exe	83
PID 4476 wrote to memory of 1596	4476	overrough.exe	84
PID 4476 wrote to memory of 1596	4476	overrough.exe	84
PID 4476 wrote to memory of 1596	4476	overrough.exe	84
PID 4476 wrote to memory of 1596	4476	overrough.exe	84
PID 3476 wrote to memory of 1592	3476	Explorer.EXE	85
PID 3476 wrote to memory of 1592	3476	Explorer.EXE	85
PID 3476 wrote to memory of 1592	3476	Explorer.EXE	85
PID 1592 wrote to memory of 1532	1592	systray.exe	89
PID 1592 wrote to memory of 1532	1592	systray.exe	89
PID 1592 wrote to memory of 1532	1592	systray.exe	89

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3476
- C:\Users\Admin\AppData\Local\Temp\rRFQ_BIDLET-PO772917811_PROPOSL_BG_AD____PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\rRFQ_BIDLET-PO772917811_PROPOSL_BG_AD____PDF.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Users\Admin\AppData\Local\antholite\overrough.exe
    "C:\Users\Admin\AppData\Local\Temp\rRFQ_BIDLET-PO772917811_PROPOSL_BG_AD____PDF.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - 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:4476
  - - C:\Windows\SysWOW64\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\rRFQ_BIDLET-PO772917811_PROPOSL_BG_AD____PDF.exe"
      4⤵
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:1596
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.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:1592
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1532

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

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Downloads

C:\Users\Admin\AppData\Local\antholite\overrough.exe

Filesize
1.4MB

MD5
289754998d1520e2bec7190452c464ac

SHA1
a25755aa21ff2512d7f0b19af804c7ca81729767

SHA256
dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1

SHA512
03e640719eee50a99cdcfce411c940339d5f0142beb4eba5d081a9ac493059fc44be9971f1e78750584cff478941f04c6ea3d61468f8dd903a6636324353ab08

Download Submit
memory/1592-19-0x0000000000090000-0x0000000000096000-memory.dmp

Filesize
24KB

Download
memory/1592-20-0x0000000000B10000-0x0000000000B3F000-memory.dmp

Filesize
188KB

Download
memory/1592-18-0x0000000000090000-0x0000000000096000-memory.dmp

Filesize
24KB

Download
memory/1596-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1596-16-0x0000000001980000-0x0000000001994000-memory.dmp

Filesize
80KB

Download
memory/1596-13-0x0000000001C00000-0x0000000001F4A000-memory.dmp

Filesize
3.3MB

Download
memory/1596-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2844-2-0x0000000001450000-0x0000000001850000-memory.dmp

Filesize
4.0MB

Download
memory/3476-17-0x0000000002D50000-0x0000000002E0D000-memory.dmp

Filesize
756KB

Download
memory/3476-21-0x0000000002D50000-0x0000000002E0D000-memory.dmp

Filesize
756KB

Download
memory/3476-25-0x0000000007A00000-0x0000000007AA5000-memory.dmp

Filesize
660KB

Download
memory/3476-26-0x0000000007A00000-0x0000000007AA5000-memory.dmp

Filesize
660KB

Download
memory/3476-28-0x0000000007A00000-0x0000000007AA5000-memory.dmp

Filesize
660KB

Download
memory/4476-10-0x00000000010C0000-0x00000000014C0000-memory.dmp

Filesize
4.0MB

Download