formbook | 26d114f221d28e6e9df7dac1596388600785c9e3611e41ff9d304952e4eb5a9b

Analysis

max time kernel
300s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20/09/2024, 07:58

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General

Target

purchase order.exe
Size

547KB
MD5

5296af4ed8e6f9d06274547012b5ba62
SHA1

2da877c31b6213e05fe65219bcf8a422cbb5b68b
SHA256

fc5677c59829c91effde4a5b050dd517d089cee3a6bf9eb752695f3402e2dc28
SHA512

77d9d10b1cda513fcdb04bac41ff7511a301c450b6f2f23a2bd86b1f709a58545ec53baa961579b483999d1579c5d47942e889f2a66fe84e327c25947f9078e6
SSDEEP

12288:f0wru3+OWz4QX9i1uNU1ubuMFZ0K6SYwg+5dVZ54ohPuyrHQj:swyU9iQNhbue6PHOdVZ54oa

Score

10^/10

formbook t94g discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

t94g

Decoy

32188.top

mergencyroofrepair656460.online

jkahu.fun

ur4.autos

r0lba4cl0qkaws8.bond

eiliaowang.top

urjav.xyz

kidaman15.click

old-removal-p350.today

levatethismedia.info

h33323s40.top

dormy.click

5406.club

earlofwisdombook.pro

6980.app

ellwood999.biz

otdates.lol

164v.shop

thereal.app

takeget.online

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/2972-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2972-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2972-23-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2760-25-0x0000000000080000-0x00000000000AF000-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
2116	powershell.exe

Deletes itself 1 IoCs

pid	Process
2604	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2032 set thread context of 2972	2032	purchase order.exe	31
PID 2972 set thread context of 1224	2972	purchase order.exe	21
PID 2972 set thread context of 1224	2972	purchase order.exe	21
PID 2760 set thread context of 1224	2760	raserver.exe	21

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	purchase order.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
2032	purchase order.exe
2032	purchase order.exe
2972	purchase order.exe
2972	purchase order.exe
2116	powershell.exe
2972	purchase order.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe
2760	raserver.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2972	purchase order.exe
2972	purchase order.exe
2972	purchase order.exe
2972	purchase order.exe
2760	raserver.exe
2760	raserver.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2032	purchase order.exe
Token: SeDebugPrivilege	2972	purchase order.exe
Token: SeDebugPrivilege	2116	powershell.exe
Token: SeDebugPrivilege	2760	raserver.exe
Token: SeShutdownPrivilege	1224	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 2116	2032	purchase order.exe	30
PID 2032 wrote to memory of 2116	2032	purchase order.exe	30
PID 2032 wrote to memory of 2116	2032	purchase order.exe	30
PID 2032 wrote to memory of 2116	2032	purchase order.exe	30
PID 2032 wrote to memory of 2972	2032	purchase order.exe	31
PID 2032 wrote to memory of 2972	2032	purchase order.exe	31
PID 2032 wrote to memory of 2972	2032	purchase order.exe	31
PID 2032 wrote to memory of 2972	2032	purchase order.exe	31
PID 2032 wrote to memory of 2972	2032	purchase order.exe	31
PID 2032 wrote to memory of 2972	2032	purchase order.exe	31
PID 2032 wrote to memory of 2972	2032	purchase order.exe	31
PID 1224 wrote to memory of 2760	1224	Explorer.EXE	34
PID 1224 wrote to memory of 2760	1224	Explorer.EXE	34
PID 1224 wrote to memory of 2760	1224	Explorer.EXE	34
PID 1224 wrote to memory of 2760	1224	Explorer.EXE	34
PID 2760 wrote to memory of 2604	2760	raserver.exe	35
PID 2760 wrote to memory of 2604	2760	raserver.exe	35
PID 2760 wrote to memory of 2604	2760	raserver.exe	35
PID 2760 wrote to memory of 2604	2760	raserver.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1224
- C:\Users\Admin\AppData\Local\Temp\purchase order.exe
  "C:\Users\Admin\AppData\Local\Temp\purchase order.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2032
- - 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\purchase order.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2116
- - C:\Users\Admin\AppData\Local\Temp\purchase order.exe
    "C:\Users\Admin\AppData\Local\Temp\purchase order.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2972
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:2760
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\purchase order.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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/1224-17-0x00000000068C0000-0x0000000006A69000-memory.dmp

Filesize
1.7MB

Download
memory/1224-14-0x0000000000360000-0x0000000000460000-memory.dmp

Filesize
1024KB

Download
memory/2032-6-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2032-4-0x0000000000220000-0x0000000000230000-memory.dmp

Filesize
64KB

Download
memory/2032-3-0x0000000004B40000-0x0000000004BD2000-memory.dmp

Filesize
584KB

Download
memory/2032-5-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/2032-2-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2032-7-0x0000000005090000-0x0000000005106000-memory.dmp

Filesize
472KB

Download
memory/2032-0-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/2032-19-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2032-1-0x00000000002A0000-0x0000000000330000-memory.dmp

Filesize
576KB

Download
memory/2760-25-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2760-24-0x0000000000750000-0x000000000076C000-memory.dmp

Filesize
112KB

Download
memory/2972-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2972-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2972-16-0x0000000000190000-0x00000000001A5000-memory.dmp

Filesize
84KB

Download
memory/2972-15-0x0000000000B70000-0x0000000000E73000-memory.dmp

Filesize
3.0MB

Download
memory/2972-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2972-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2972-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2972-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download