formbook | b88b53db5c1fd0779cb7718630d7ac90f0ff81cfc7e8495bff1325743adeff65

Analysis

max time kernel
148s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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 4 IoCs

rat

resource	yara_rule
behavioral4/memory/4284-1-0x0000000000560000-0x000000000058F000-memory.dmp	formbook
behavioral4/memory/4284-5-0x0000000000560000-0x000000000058F000-memory.dmp	formbook
behavioral4/memory/4284-9-0x0000000000560000-0x000000000058F000-memory.dmp	formbook
behavioral4/memory/1860-15-0x0000000000340000-0x000000000036F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 540 set thread context of 4284	540	yplqoz.exe	83
PID 4284 set thread context of 3464	4284	yplqoz.exe	56
PID 4284 set thread context of 3464	4284	yplqoz.exe	56
PID 1860 set thread context of 3464	1860	colorcpl.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	yplqoz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	colorcpl.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4284	yplqoz.exe
4284	yplqoz.exe
4284	yplqoz.exe
4284	yplqoz.exe
4284	yplqoz.exe
4284	yplqoz.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe
1860	colorcpl.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
540	yplqoz.exe
540	yplqoz.exe
4284	yplqoz.exe
4284	yplqoz.exe
4284	yplqoz.exe
4284	yplqoz.exe
1860	colorcpl.exe
1860	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4284	yplqoz.exe
Token: SeDebugPrivilege	1860	colorcpl.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 4284	540	yplqoz.exe	83
PID 540 wrote to memory of 4284	540	yplqoz.exe	83
PID 540 wrote to memory of 4284	540	yplqoz.exe	83
PID 540 wrote to memory of 4284	540	yplqoz.exe	83
PID 3464 wrote to memory of 1860	3464	Explorer.EXE	84
PID 3464 wrote to memory of 1860	3464	Explorer.EXE	84
PID 3464 wrote to memory of 1860	3464	Explorer.EXE	84
PID 1860 wrote to memory of 2856	1860	colorcpl.exe	85
PID 1860 wrote to memory of 2856	1860	colorcpl.exe	85
PID 1860 wrote to memory of 2856	1860	colorcpl.exe	85

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3464
- C:\Users\Admin\AppData\Local\Temp\yplqoz.exe
  "C:\Users\Admin\AppData\Local\Temp\yplqoz.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:540
- - C:\Users\Admin\AppData\Local\Temp\yplqoz.exe
    "C:\Users\Admin\AppData\Local\Temp\yplqoz.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4284
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.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:1860
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\yplqoz.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2856

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/540-0-0x0000000001210000-0x0000000001212000-memory.dmp

Filesize
8KB

Download
memory/1860-15-0x0000000000340000-0x000000000036F000-memory.dmp

Filesize
188KB

Download
memory/1860-14-0x0000000000590000-0x00000000005A9000-memory.dmp

Filesize
100KB

Download
memory/1860-13-0x0000000000590000-0x00000000005A9000-memory.dmp

Filesize
100KB

Download
memory/3464-11-0x0000000002920000-0x0000000002A64000-memory.dmp

Filesize
1.3MB

Download
memory/3464-7-0x000000000A7D0000-0x000000000A947000-memory.dmp

Filesize
1.5MB

Download
memory/3464-12-0x000000000A7D0000-0x000000000A947000-memory.dmp

Filesize
1.5MB

Download
memory/3464-16-0x0000000002920000-0x0000000002A64000-memory.dmp

Filesize
1.3MB

Download
memory/3464-19-0x0000000008630000-0x0000000008786000-memory.dmp

Filesize
1.3MB

Download
memory/3464-20-0x0000000008630000-0x0000000008786000-memory.dmp

Filesize
1.3MB

Download
memory/3464-22-0x0000000008630000-0x0000000008786000-memory.dmp

Filesize
1.3MB

Download
memory/4284-9-0x0000000000560000-0x000000000058F000-memory.dmp

Filesize
188KB

Download
memory/4284-10-0x00000000029D0000-0x00000000029E5000-memory.dmp

Filesize
84KB

Download
memory/4284-5-0x0000000000560000-0x000000000058F000-memory.dmp

Filesize
188KB

Download
memory/4284-6-0x0000000000D00000-0x0000000000D15000-memory.dmp

Filesize
84KB

Download
memory/4284-4-0x0000000000D90000-0x00000000010DA000-memory.dmp

Filesize
3.3MB

Download
memory/4284-1-0x0000000000560000-0x000000000058F000-memory.dmp

Filesize
188KB

Download