formbook | 761930655c92d23751075c7399bc4d384270fdeab881a8c486de0362a976b4d0

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11-09-2024 20:18

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General

Target

r8ykXfy52F9CXd5d.exe
Size

759KB
MD5

6341110aa0627431093ef3c502f65669
SHA1

12dd6b363e9d841bce3fd0c007b1e84796909149
SHA256

761930655c92d23751075c7399bc4d384270fdeab881a8c486de0362a976b4d0
SHA512

2aee95c0f40f86f6c505cabeb2797aab5e587b3021c40156c2f5bff0ebc5d6787c5975a1978a4747a303e7cdba637498bac923a7e633931dd79b62feffaa8224
SSDEEP

12288:IQ11UoIG5MPUNDguQL6/Vt+uIMtBLn6TnfymJVDgP5BhMW+:lUobySgu26t/IMt16OmJidMW+

Score

10^/10

formbook he2a discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

he2a

Decoy

070001606.xyz

jesuseascriancas.online

as-eltransport.xyz

bankditalia-company.online

linkedin-stijngraat.online

sportsbetd.xyz

spanish-classes-76893.bond

infonation.pro

nxwzbze.forum

rush-pay.biz

fulfillmissions.lat

infolungcancer.xyz

aqario.xyz

omepro.solar

jackmanmueshl.shop

amcart.store

ishanaudichya.xyz

sun4rk.shop

depression-test-74287.bond

chipit.shop

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
behavioral2/memory/756-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/756-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/756-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3736-26-0x00000000010C0000-0x00000000010EF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 820 set thread context of 756	820	r8ykXfy52F9CXd5d.exe	94
PID 756 set thread context of 3452	756	r8ykXfy52F9CXd5d.exe	56
PID 756 set thread context of 3452	756	r8ykXfy52F9CXd5d.exe	56
PID 3736 set thread context of 3452	3736	chkdsk.exe	56

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	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	r8ykXfy52F9CXd5d.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 56 IoCs

pid	Process
756	r8ykXfy52F9CXd5d.exe
756	r8ykXfy52F9CXd5d.exe
756	r8ykXfy52F9CXd5d.exe
756	r8ykXfy52F9CXd5d.exe
756	r8ykXfy52F9CXd5d.exe
756	r8ykXfy52F9CXd5d.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe
3736	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
756	r8ykXfy52F9CXd5d.exe
756	r8ykXfy52F9CXd5d.exe
756	r8ykXfy52F9CXd5d.exe
756	r8ykXfy52F9CXd5d.exe
3736	chkdsk.exe
3736	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	756	r8ykXfy52F9CXd5d.exe
Token: SeDebugPrivilege	3736	chkdsk.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3452	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 820 wrote to memory of 756	820	r8ykXfy52F9CXd5d.exe	94
PID 820 wrote to memory of 756	820	r8ykXfy52F9CXd5d.exe	94
PID 820 wrote to memory of 756	820	r8ykXfy52F9CXd5d.exe	94
PID 820 wrote to memory of 756	820	r8ykXfy52F9CXd5d.exe	94
PID 820 wrote to memory of 756	820	r8ykXfy52F9CXd5d.exe	94
PID 820 wrote to memory of 756	820	r8ykXfy52F9CXd5d.exe	94
PID 3452 wrote to memory of 3736	3452	Explorer.EXE	95
PID 3452 wrote to memory of 3736	3452	Explorer.EXE	95
PID 3452 wrote to memory of 3736	3452	Explorer.EXE	95
PID 3736 wrote to memory of 4816	3736	chkdsk.exe	96
PID 3736 wrote to memory of 4816	3736	chkdsk.exe	96
PID 3736 wrote to memory of 4816	3736	chkdsk.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Users\Admin\AppData\Local\Temp\r8ykXfy52F9CXd5d.exe
  "C:\Users\Admin\AppData\Local\Temp\r8ykXfy52F9CXd5d.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:820
- - C:\Users\Admin\AppData\Local\Temp\r8ykXfy52F9CXd5d.exe
    "C:\Users\Admin\AppData\Local\Temp\r8ykXfy52F9CXd5d.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:756
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3736
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\r8ykXfy52F9CXd5d.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

memory/756-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/756-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/756-21-0x00000000037E0000-0x00000000037F4000-memory.dmp

Filesize
80KB

Download
memory/756-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/756-17-0x00000000018E0000-0x00000000018F4000-memory.dmp

Filesize
80KB

Download
memory/756-14-0x0000000001A20000-0x0000000001D6A000-memory.dmp

Filesize
3.3MB

Download
memory/820-7-0x00000000747EE000-0x00000000747EF000-memory.dmp

Filesize
4KB

Download
memory/820-2-0x0000000005180000-0x0000000005724000-memory.dmp

Filesize
5.6MB

Download
memory/820-8-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/820-9-0x0000000006150000-0x00000000061C6000-memory.dmp

Filesize
472KB

Download
memory/820-10-0x0000000005FD0000-0x000000000606C000-memory.dmp

Filesize
624KB

Download
memory/820-6-0x0000000004FD0000-0x0000000004FE8000-memory.dmp

Filesize
96KB

Download
memory/820-13-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/820-5-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/820-4-0x0000000004C30000-0x0000000004C3A000-memory.dmp

Filesize
40KB

Download
memory/820-3-0x0000000004C70000-0x0000000004D02000-memory.dmp

Filesize
584KB

Download
memory/820-1-0x0000000000190000-0x0000000000254000-memory.dmp

Filesize
784KB

Download
memory/820-0-0x00000000747EE000-0x00000000747EF000-memory.dmp

Filesize
4KB

Download
memory/3452-22-0x00000000098C0000-0x0000000009A6D000-memory.dmp

Filesize
1.7MB

Download
memory/3452-18-0x0000000009460000-0x0000000009530000-memory.dmp

Filesize
832KB

Download
memory/3452-23-0x0000000009460000-0x0000000009530000-memory.dmp

Filesize
832KB

Download
memory/3452-27-0x00000000098C0000-0x0000000009A6D000-memory.dmp

Filesize
1.7MB

Download
memory/3452-29-0x000000000B100000-0x000000000B19A000-memory.dmp

Filesize
616KB

Download
memory/3452-30-0x000000000B100000-0x000000000B19A000-memory.dmp

Filesize
616KB

Download
memory/3452-32-0x000000000B100000-0x000000000B19A000-memory.dmp

Filesize
616KB

Download
memory/3736-24-0x0000000000660000-0x000000000066A000-memory.dmp

Filesize
40KB

Download
memory/3736-25-0x0000000000660000-0x000000000066A000-memory.dmp

Filesize
40KB

Download
memory/3736-26-0x00000000010C0000-0x00000000010EF000-memory.dmp

Filesize
188KB

Download