formbook | b8a517a65d37e87f93f85df0dd0cffa075c49c6d8438e8663ed50e59a4647b5b

General

Target

new order.exe
Size

683KB
MD5

6d7e6654f32d5e775819b21895c968b1
SHA1

e5c4522e22314b1b34a726bec182201556d95225
SHA256

792bdecda049100bcddb388c74b9fa5aa21d30a167786f1e5a99091a6e77c430
SHA512

c4fb5b11eec0fd71ac928ddfddc199d7240e9088f84f519b8f2cda43cffdca0d05e7c29de55e1f63c1548d24797447ad92c8df334a043cb5847e661ea879d2b4
SSDEEP

12288:q0e4F55OHTDP6ko4H93fe4W5LLqIJnrC7pXvwzzcVh/x2SsbDWb:o4FXOPRve4W5L2I5ruSfMh2Wb

Score

10^/10

formbook k49s discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

k49s

Decoy

ufberyrubiest.shop

tpanekatotosite.top

esona805158762.xyz

earing-tests-15487.bond

rediksitiraitoto.xyz

tore-playstore.online

mpresarialpx38.online

ufxusa.net

reativedesigns.lat

leaning-services-47614.bond

959725nptklnq923.top

treziop.xyz

eubel-bestseller.online

uynewcars.xyz

all-panels-74750.bond

erviceninjas.vip

arectoroffice.xyz

oviesgpt.app

ractors-22059.bond

rakenfitness.info

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/2936-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2936-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2116-22-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2904	powershell.exe

Deletes itself 1 IoCs

pid	Process
2664	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1088 set thread context of 2936	1088	new order.exe	31
PID 2936 set thread context of 1244	2936	new order.exe	20
PID 2116 set thread context of 1244	2116	wuapp.exe	20

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	new order.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuapp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
2936	new order.exe
2936	new order.exe
2904	powershell.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe
2116	wuapp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2936	new order.exe
2936	new order.exe
2936	new order.exe
2116	wuapp.exe
2116	wuapp.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2936	new order.exe
Token: SeDebugPrivilege	2904	powershell.exe
Token: SeDebugPrivilege	2116	wuapp.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 2904	1088	new order.exe	29
PID 1088 wrote to memory of 2904	1088	new order.exe	29
PID 1088 wrote to memory of 2904	1088	new order.exe	29
PID 1088 wrote to memory of 2904	1088	new order.exe	29
PID 1088 wrote to memory of 2936	1088	new order.exe	31
PID 1088 wrote to memory of 2936	1088	new order.exe	31
PID 1088 wrote to memory of 2936	1088	new order.exe	31
PID 1088 wrote to memory of 2936	1088	new order.exe	31
PID 1088 wrote to memory of 2936	1088	new order.exe	31
PID 1088 wrote to memory of 2936	1088	new order.exe	31
PID 1088 wrote to memory of 2936	1088	new order.exe	31
PID 1244 wrote to memory of 2116	1244	Explorer.EXE	32
PID 1244 wrote to memory of 2116	1244	Explorer.EXE	32
PID 1244 wrote to memory of 2116	1244	Explorer.EXE	32
PID 1244 wrote to memory of 2116	1244	Explorer.EXE	32
PID 1244 wrote to memory of 2116	1244	Explorer.EXE	32
PID 1244 wrote to memory of 2116	1244	Explorer.EXE	32
PID 1244 wrote to memory of 2116	1244	Explorer.EXE	32
PID 2116 wrote to memory of 2664	2116	wuapp.exe	33
PID 2116 wrote to memory of 2664	2116	wuapp.exe	33
PID 2116 wrote to memory of 2664	2116	wuapp.exe	33
PID 2116 wrote to memory of 2664	2116	wuapp.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1244
- C:\Users\Admin\AppData\Local\Temp\new order.exe
  "C:\Users\Admin\AppData\Local\Temp\new order.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1088
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\new order.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2904
- - C:\Users\Admin\AppData\Local\Temp\new order.exe
    "C:\Users\Admin\AppData\Local\Temp\new order.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2936
- C:\Windows\SysWOW64\wuapp.exe
  "C:\Windows\SysWOW64\wuapp.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:2116
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\new order.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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

memory/1088-14-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/1088-1-0x00000000008D0000-0x0000000000980000-memory.dmp

Filesize
704KB

Download
memory/1088-2-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/1088-3-0x00000000005F0000-0x0000000000608000-memory.dmp

Filesize
96KB

Download
memory/1088-4-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download
memory/1088-5-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/1088-6-0x0000000005C80000-0x0000000005CFA000-memory.dmp

Filesize
488KB

Download
memory/1088-0-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download
memory/2116-22-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2116-20-0x0000000000170000-0x000000000017B000-memory.dmp

Filesize
44KB

Download
memory/2936-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2936-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2936-17-0x0000000000C50000-0x0000000000F53000-memory.dmp

Filesize
3.0MB

Download
memory/2936-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2936-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2936-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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