formbook | dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1

General

Target

dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.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 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2552-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2552-18-0x0000000000400000-0x000000000042F000-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
1776	overrough.exe

Loads dropped DLL 1 IoCs

pid	Process
1692	dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.exe

AutoIT Executable 3 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0008000000015d41-4.dat	autoit_exe
behavioral1/memory/1776-12-0x0000000000930000-0x0000000000A9B000-memory.dmp	autoit_exe
behavioral1/memory/1776-15-0x0000000000930000-0x0000000000A9B000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1776 set thread context of 2552	1776	overrough.exe	31
PID 2552 set thread context of 1284	2552	svchost.exe	21

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2876	2360	WerFault.exe	32

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	overrough.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2552	svchost.exe
2552	svchost.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
1776	overrough.exe
2552	svchost.exe
2552	svchost.exe
2552	svchost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2552	svchost.exe
Token: SeShutdownPrivilege	1284	Explorer.EXE
Token: SeShutdownPrivilege	1284	Explorer.EXE
Token: SeShutdownPrivilege	1284	Explorer.EXE

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
1692	dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.exe
1692	dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.exe
1776	overrough.exe
1776	overrough.exe
1284	Explorer.EXE
1284	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1692	dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.exe
1692	dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.exe
1776	overrough.exe
1776	overrough.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 1776	1692	dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.exe	30
PID 1692 wrote to memory of 1776	1692	dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.exe	30
PID 1692 wrote to memory of 1776	1692	dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.exe	30
PID 1692 wrote to memory of 1776	1692	dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.exe	30
PID 1776 wrote to memory of 2552	1776	overrough.exe	31
PID 1776 wrote to memory of 2552	1776	overrough.exe	31
PID 1776 wrote to memory of 2552	1776	overrough.exe	31
PID 1776 wrote to memory of 2552	1776	overrough.exe	31
PID 1776 wrote to memory of 2552	1776	overrough.exe	31
PID 1284 wrote to memory of 2360	1284	Explorer.EXE	32
PID 1284 wrote to memory of 2360	1284	Explorer.EXE	32
PID 1284 wrote to memory of 2360	1284	Explorer.EXE	32
PID 1284 wrote to memory of 2360	1284	Explorer.EXE	32
PID 1284 wrote to memory of 2360	1284	Explorer.EXE	32
PID 1284 wrote to memory of 2360	1284	Explorer.EXE	32
PID 1284 wrote to memory of 2360	1284	Explorer.EXE	32
PID 2360 wrote to memory of 2876	2360	msiexec.exe	34
PID 2360 wrote to memory of 2876	2360	msiexec.exe	34
PID 2360 wrote to memory of 2876	2360	msiexec.exe	34
PID 2360 wrote to memory of 2876	2360	msiexec.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Users\Admin\AppData\Local\Temp\dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.exe
  "C:\Users\Admin\AppData\Local\Temp\dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1692
- - C:\Users\Admin\AppData\Local\antholite\overrough.exe
    "C:\Users\Admin\AppData\Local\Temp\dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.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:1776
  - - C:\Windows\SysWOW64\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1.exe"
      4⤵
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2552
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2360
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 268
    3⤵
    - Program crash
    PID:2876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
1.4MB

MD5
289754998d1520e2bec7190452c464ac

SHA1
a25755aa21ff2512d7f0b19af804c7ca81729767

SHA256
dd82f88cdd4a62e9e9b5a081cbd3f98b542614ee6b0e33c2385817af92c704a1

SHA512
03e640719eee50a99cdcfce411c940339d5f0142beb4eba5d081a9ac493059fc44be9971f1e78750584cff478941f04c6ea3d61468f8dd903a6636324353ab08

Download Submit
memory/1284-20-0x0000000004D10000-0x0000000004DD7000-memory.dmp

Filesize
796KB

Download
memory/1284-27-0x0000000004D10000-0x0000000004DD7000-memory.dmp

Filesize
796KB

Download
memory/1692-2-0x00000000009F0000-0x0000000000DF0000-memory.dmp

Filesize
4.0MB

Download
memory/1776-12-0x0000000000930000-0x0000000000A9B000-memory.dmp

Filesize
1.4MB

Download
memory/1776-15-0x0000000000930000-0x0000000000A9B000-memory.dmp

Filesize
1.4MB

Download
memory/2360-21-0x0000000000120000-0x0000000000134000-memory.dmp

Filesize
80KB

Download
memory/2360-22-0x0000000000120000-0x0000000000134000-memory.dmp

Filesize
80KB

Download
memory/2360-24-0x0000000000120000-0x0000000000134000-memory.dmp

Filesize
80KB

Download
memory/2552-16-0x0000000000910000-0x0000000000C13000-memory.dmp

Filesize
3.0MB

Download
memory/2552-19-0x00000000001E0000-0x00000000001F4000-memory.dmp

Filesize
80KB

Download
memory/2552-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2552-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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