formbook | 8924d6255fe634004cc46de0a9ee6b4d7c44c1612947d747ebea2a6c06d2a37e

Analysis

max time kernel
146s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-09-2024 16:05

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General

Target

TEKLIF2002509.exe
Size

596KB
MD5

7a3bfa8d0ab2a9b1258925a73a037393
SHA1

5785960ead180d8709d2b4e182ada67cf751a85c
SHA256

8924d6255fe634004cc46de0a9ee6b4d7c44c1612947d747ebea2a6c06d2a37e
SHA512

aaf55fa5de8f5c8755383694256a369ecaf31337f6a768ffff22e76f16a5413bce56dafe7efb2145c43591d9f214770de0d0596b9094ce65a683157bd0baecd3
SSDEEP

12288:5sy8bQbFshgdcUTejQDo7ryDKdQRFlPHlhBhiJ+UXC/:KIeQr0HyDSQPFc+US/

Score

10^/10

formbook bc01 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bc01

Decoy

epatitis-treatment-26155.bond

52cy67sk.bond

nline-degree-6987776.world

ingxingdiandeng-2033.top

mberbreeze.cyou

48xc300mw.autos

obs-for-seniors-39582.bond

tpetersburg-3-tonn.online

egafon-parser.online

172jh.shop

ltraman.pro

bqfhnys.shop

ntercash24-cad.homes

uhtwister.cloud

alk-in-tubs-27353.bond

ucas-saaad.buzz

oko.events

8080713.xyz

refabricated-homes-74404.bond

inaa.boo

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1996-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1996-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3748-68-0x00000000011C0000-0x00000000011EF000-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
1504	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	TEKLIF2002509.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4044 set thread context of 1996	4044	TEKLIF2002509.exe	91
PID 1996 set thread context of 3524	1996	TEKLIF2002509.exe	56
PID 3748 set thread context of 3524	3748	wscript.exe	56

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	TEKLIF2002509.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
1996	TEKLIF2002509.exe
1996	TEKLIF2002509.exe
1996	TEKLIF2002509.exe
1996	TEKLIF2002509.exe
1504	powershell.exe
1504	powershell.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe
3748	wscript.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1996	TEKLIF2002509.exe
1996	TEKLIF2002509.exe
1996	TEKLIF2002509.exe
3748	wscript.exe
3748	wscript.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1996	TEKLIF2002509.exe
Token: SeDebugPrivilege	1504	powershell.exe
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE
Token: SeDebugPrivilege	3748	wscript.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4044 wrote to memory of 1504	4044	TEKLIF2002509.exe	89
PID 4044 wrote to memory of 1504	4044	TEKLIF2002509.exe	89
PID 4044 wrote to memory of 1504	4044	TEKLIF2002509.exe	89
PID 4044 wrote to memory of 1996	4044	TEKLIF2002509.exe	91
PID 4044 wrote to memory of 1996	4044	TEKLIF2002509.exe	91
PID 4044 wrote to memory of 1996	4044	TEKLIF2002509.exe	91
PID 4044 wrote to memory of 1996	4044	TEKLIF2002509.exe	91
PID 4044 wrote to memory of 1996	4044	TEKLIF2002509.exe	91
PID 4044 wrote to memory of 1996	4044	TEKLIF2002509.exe	91
PID 3524 wrote to memory of 3748	3524	Explorer.EXE	92
PID 3524 wrote to memory of 3748	3524	Explorer.EXE	92
PID 3524 wrote to memory of 3748	3524	Explorer.EXE	92
PID 3748 wrote to memory of 704	3748	wscript.exe	93
PID 3748 wrote to memory of 704	3748	wscript.exe	93
PID 3748 wrote to memory of 704	3748	wscript.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3524
- C:\Users\Admin\AppData\Local\Temp\TEKLIF2002509.exe
  "C:\Users\Admin\AppData\Local\Temp\TEKLIF2002509.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4044
- - 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\TEKLIF2002509.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1504
- - C:\Users\Admin\AppData\Local\Temp\TEKLIF2002509.exe
    "C:\Users\Admin\AppData\Local\Temp\TEKLIF2002509.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1996
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.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:3748
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\TEKLIF2002509.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:704

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

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kn5jq24x.l1n.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1504-55-0x00000000072D0000-0x00000000072EA000-memory.dmp

Filesize
104KB

Download
memory/1504-54-0x0000000007910000-0x0000000007F8A000-memory.dmp

Filesize
6.5MB

Download
memory/1504-24-0x0000000004FF0000-0x0000000005012000-memory.dmp

Filesize
136KB

Download
memory/1504-61-0x0000000007610000-0x000000000762A000-memory.dmp

Filesize
104KB

Download
memory/1504-60-0x0000000007510000-0x0000000007524000-memory.dmp

Filesize
80KB

Download
memory/1504-59-0x0000000007500000-0x000000000750E000-memory.dmp

Filesize
56KB

Download
memory/1504-58-0x00000000074D0000-0x00000000074E1000-memory.dmp

Filesize
68KB

Download
memory/1504-57-0x0000000007550000-0x00000000075E6000-memory.dmp

Filesize
600KB

Download
memory/1504-56-0x0000000007340000-0x000000000734A000-memory.dmp

Filesize
40KB

Download
memory/1504-53-0x00000000071A0000-0x0000000007243000-memory.dmp

Filesize
652KB

Download
memory/1504-42-0x0000000002680000-0x0000000002690000-memory.dmp

Filesize
64KB

Download
memory/1504-41-0x0000000070740000-0x000000007078C000-memory.dmp

Filesize
304KB

Download
memory/1504-40-0x0000000006F60000-0x0000000006F92000-memory.dmp

Filesize
200KB

Download
memory/1504-18-0x000000007492E000-0x000000007492F000-memory.dmp

Filesize
4KB

Download
memory/1504-26-0x0000000005890000-0x00000000058F6000-memory.dmp

Filesize
408KB

Download
memory/1504-22-0x0000000002680000-0x0000000002690000-memory.dmp

Filesize
64KB

Download
memory/1504-21-0x0000000002680000-0x0000000002690000-memory.dmp

Filesize
64KB

Download
memory/1504-23-0x0000000005080000-0x00000000056A8000-memory.dmp

Filesize
6.2MB

Download
memory/1504-39-0x000000007F480000-0x000000007F490000-memory.dmp

Filesize
64KB

Download
memory/1504-19-0x0000000004A10000-0x0000000004A46000-memory.dmp

Filesize
216KB

Download
memory/1504-38-0x0000000006090000-0x00000000060DC000-memory.dmp

Filesize
304KB

Download
memory/1504-25-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download
memory/1504-37-0x0000000005FB0000-0x0000000005FCE000-memory.dmp

Filesize
120KB

Download
memory/1504-62-0x00000000075F0000-0x00000000075F8000-memory.dmp

Filesize
32KB

Download
memory/1504-52-0x0000000006F20000-0x0000000006F3E000-memory.dmp

Filesize
120KB

Download
memory/1504-32-0x0000000005940000-0x0000000005C94000-memory.dmp

Filesize
3.3MB

Download
memory/1996-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1996-17-0x0000000001370000-0x0000000001384000-memory.dmp

Filesize
80KB

Download
memory/1996-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1996-14-0x0000000001940000-0x0000000001C8A000-memory.dmp

Filesize
3.3MB

Download
memory/3524-73-0x00000000032E0000-0x00000000033C5000-memory.dmp

Filesize
916KB

Download
memory/3524-20-0x00000000087A0000-0x00000000088C3000-memory.dmp

Filesize
1.1MB

Download
memory/3524-67-0x00000000087A0000-0x00000000088C3000-memory.dmp

Filesize
1.1MB

Download
memory/3748-63-0x00000000005D0000-0x00000000005F7000-memory.dmp

Filesize
156KB

Download
memory/3748-64-0x00000000005D0000-0x00000000005F7000-memory.dmp

Filesize
156KB

Download
memory/3748-68-0x00000000011C0000-0x00000000011EF000-memory.dmp

Filesize
188KB

Download
memory/4044-5-0x0000000005060000-0x000000000506A000-memory.dmp

Filesize
40KB

Download
memory/4044-2-0x0000000005650000-0x0000000005BF4000-memory.dmp

Filesize
5.6MB

Download
memory/4044-7-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/4044-6-0x0000000005630000-0x0000000005642000-memory.dmp

Filesize
72KB

Download
memory/4044-8-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4044-4-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4044-3-0x0000000004FA0000-0x0000000005032000-memory.dmp

Filesize
584KB

Download
memory/4044-13-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4044-0-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/4044-1-0x0000000000530000-0x00000000005CC000-memory.dmp

Filesize
624KB

Download
memory/4044-10-0x0000000009780000-0x000000000981C000-memory.dmp

Filesize
624KB

Download
memory/4044-9-0x0000000007040000-0x00000000070B6000-memory.dmp

Filesize
472KB

Download