formbook | b88b53db5c1fd0779cb7718630d7ac90f0ff81cfc7e8495bff1325743adeff65

Analysis

max time kernel
84s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
05-10-2024 12:26

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General

Target

yplqoz.exe
Size

167KB
MD5

c7e6dba02c269734255208e86e23fce8
SHA1

746596f46256c1752b7d101d0dc54d0baa64e29c
SHA256

8acf4c88e097cfcba3bfa08c24884c446bb943f5a3b5eb610f50db67574de771
SHA512

b7c9a608fc3a82fcd7cfa3c6c8f7be3af9d028ffcef1e680f20364796ef8c4351759be036320ed203f785a04b0acd11d0d49217b557b36b5b50264e2b9448abf
SSDEEP

3072:wnqSbagMaHxt6YHJIKAi+jNcnfk9rJX/U8Gn:wnq2EYWbi+y

Score

10^/10

formbook sn26 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sn26

Decoy

resenha10.bet

gulshan-rajput.com

xbus.tech

z813my.cfd

wlxzjlny.cfd

auntengotiempo.com

canada-reservation.com

thegiftcompany.shop

esthersilveirapropiedades.com

1wapws.top

ymjblnvo.cfd

termokimik.net

kushiro-artist-school.com

bmmboo.com

caceresconstructionservices.com

kentuckywalkabout.com

bringyourcart.com

miamiwinetour.com

bobcatsocial.site

thirdmind.network

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral3/memory/1964-2-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1308 set thread context of 1964	1308	yplqoz.exe	29

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2608	1964	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 2 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	yplqoz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	yplqoz.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1308	yplqoz.exe
1308	yplqoz.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1308 wrote to memory of 1964	1308	yplqoz.exe	29
PID 1308 wrote to memory of 1964	1308	yplqoz.exe	29
PID 1308 wrote to memory of 1964	1308	yplqoz.exe	29
PID 1308 wrote to memory of 1964	1308	yplqoz.exe	29
PID 1308 wrote to memory of 1964	1308	yplqoz.exe	29
PID 1964 wrote to memory of 2608	1964	yplqoz.exe	30
PID 1964 wrote to memory of 2608	1964	yplqoz.exe	30
PID 1964 wrote to memory of 2608	1964	yplqoz.exe	30
PID 1964 wrote to memory of 2608	1964	yplqoz.exe	30

C:\Users\Admin\AppData\Local\Temp\yplqoz.exe
"C:\Users\Admin\AppData\Local\Temp\yplqoz.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1308
- C:\Users\Admin\AppData\Local\Temp\yplqoz.exe
  "C:\Users\Admin\AppData\Local\Temp\yplqoz.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1964
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1964 -s 36
    3⤵
    - Program crash
    PID:2608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1308-0-0x00000000001D0000-0x00000000001D2000-memory.dmp

Filesize
8KB

Download
memory/1964-2-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download