formbook | ffc7eef1092b78448529aa79724d73c5babc66fbc440d767b0c46d9037b40ba0

Analysis

max time kernel
149s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
16-03-2023 16:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

ödeme formu_0001.exe
Size

263KB
MD5

6ba6a3976c46e385615ede0c7584aee3
SHA1

0e9a3ee2ac21bda49a03da78a914a01a7b8f9db6
SHA256

ffc7eef1092b78448529aa79724d73c5babc66fbc440d767b0c46d9037b40ba0
SHA512

6b118a1188fe5300c00009d81a4cf399d32dac43bafae4da76bbecefd4c8ee8a601f7504220621931ff06a398e9680eef11414ec15487d7cca93562861af2445
SSDEEP

6144:vYa6j7KXS9WnHtBBNelQNnxOf2JKeG71gOMTu8mAjJDrmQDF7:vYxGXSaBBNelInxc2JnG71aqE1rmQD1

Score

10^/10

formbook k04s rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

k04s

Decoy

draanabellrojas.com

in03.one

kyraloves.co.uk

laluma.store

londoncell.com

kanurikibueadvocates.com

buyeasynow.net

escapefromtarkov-wiki.com

crewint.net

f-b.boats

beautyaidstudio.com

ashfieldconsultancy.uk

dlogsadood.com

ftgam.xyz

constantinopanama.com

yellowpocket.africa

konyil.com

easomobility.com

1135wickloecourt.com

indexb2b.com

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/1432-142-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1432-149-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4432-152-0x0000000000350000-0x000000000037F000-memory.dmp	formbook
behavioral2/memory/4432-154-0x0000000000350000-0x000000000037F000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
4984	zyayautyb.exe
1432	zyayautyb.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4984 set thread context of 1432	4984	zyayautyb.exe	86
PID 1432 set thread context of 3156	1432	zyayautyb.exe	47
PID 4432 set thread context of 3156	4432	systray.exe	47

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
1432	zyayautyb.exe
1432	zyayautyb.exe
1432	zyayautyb.exe
1432	zyayautyb.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe
4432	systray.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3156	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4984	zyayautyb.exe
1432	zyayautyb.exe
1432	zyayautyb.exe
1432	zyayautyb.exe
4432	systray.exe
4432	systray.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1432	zyayautyb.exe
Token: SeDebugPrivilege	4432	systray.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 4984	2152	ödeme formu_0001.exe	85
PID 2152 wrote to memory of 4984	2152	ödeme formu_0001.exe	85
PID 2152 wrote to memory of 4984	2152	ödeme formu_0001.exe	85
PID 4984 wrote to memory of 1432	4984	zyayautyb.exe	86
PID 4984 wrote to memory of 1432	4984	zyayautyb.exe	86
PID 4984 wrote to memory of 1432	4984	zyayautyb.exe	86
PID 4984 wrote to memory of 1432	4984	zyayautyb.exe	86
PID 3156 wrote to memory of 4432	3156	Explorer.EXE	87
PID 3156 wrote to memory of 4432	3156	Explorer.EXE	87
PID 3156 wrote to memory of 4432	3156	Explorer.EXE	87
PID 4432 wrote to memory of 3568	4432	systray.exe	88
PID 4432 wrote to memory of 3568	4432	systray.exe	88
PID 4432 wrote to memory of 3568	4432	systray.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3156
- C:\Users\Admin\AppData\Local\Temp\ödeme formu_0001.exe
  "C:\Users\Admin\AppData\Local\Temp\ödeme formu_0001.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2152
- - C:\Users\Admin\AppData\Local\Temp\zyayautyb.exe
    "C:\Users\Admin\AppData\Local\Temp\zyayautyb.exe" C:\Users\Admin\AppData\Local\Temp\gtwrbuyyg.xip
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:4984
  - - C:\Users\Admin\AppData\Local\Temp\zyayautyb.exe
      "C:\Users\Admin\AppData\Local\Temp\zyayautyb.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:1432
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4432
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\zyayautyb.exe"
    3⤵
    PID:3568

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\gtwrbuyyg.xip

Filesize
5KB

MD5
0813ed75518e67df284ad4e4e91434ce

SHA1
4f889413cf20be208839053bfff053fe749f83a2

SHA256
a4c0f9bba801f76d558fd5f82b38179f3ab0fae2b58925be281e3f10b8b30b7f

SHA512
ca1749d7189c95056e43b040963e2a48690188a864eb32e46843cf6b1ba27712bd8b43cd3cfe5203c5627574e4e14472001193c604835b40526f511298fb5d9a

Download Submit
C:\Users\Admin\AppData\Local\Temp\ozziexwbmo.dm

Filesize
205KB

MD5
0f51246845c3c5b63a9cd5f31badc627

SHA1
bbe0099d1dcf7796e6fecf53413c6bef5b0806ea

SHA256
546e9ca6e31ddf882eb6a063cea726f159534102a5034e69132c1802cd03b834

SHA512
34d686efc7d3e8c7d270ff933b62f4fe9264432f5959ee173f415eb089cf2dcef16fe32f8042d37ad9485a5c9e84271c075c9373256cde40c38da1c447854069

Download Submit
C:\Users\Admin\AppData\Local\Temp\zyayautyb.exe

Filesize
58KB

MD5
e4ae88982876edee96f117b54badc4c0

SHA1
4876544d9d0ff63c537b4b431f9f825ffa718f34

SHA256
3096af239282f87aca518d9ec511c8cb84c745ee91d24609d708e304770b1183

SHA512
dc882604ab330ebb6c38314504e20cac95e66ba05311b44ab62f09472793a16861f679152aef946e29454026c9a3b18a73ece9174467d1910d09ec51f907577a

Download Submit
C:\Users\Admin\AppData\Local\Temp\zyayautyb.exe

Filesize
58KB

MD5
e4ae88982876edee96f117b54badc4c0

SHA1
4876544d9d0ff63c537b4b431f9f825ffa718f34

SHA256
3096af239282f87aca518d9ec511c8cb84c745ee91d24609d708e304770b1183

SHA512
dc882604ab330ebb6c38314504e20cac95e66ba05311b44ab62f09472793a16861f679152aef946e29454026c9a3b18a73ece9174467d1910d09ec51f907577a

Download Submit
C:\Users\Admin\AppData\Local\Temp\zyayautyb.exe

Filesize
58KB

MD5
e4ae88982876edee96f117b54badc4c0

SHA1
4876544d9d0ff63c537b4b431f9f825ffa718f34

SHA256
3096af239282f87aca518d9ec511c8cb84c745ee91d24609d708e304770b1183

SHA512
dc882604ab330ebb6c38314504e20cac95e66ba05311b44ab62f09472793a16861f679152aef946e29454026c9a3b18a73ece9174467d1910d09ec51f907577a

Download Submit
memory/1432-149-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1432-142-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1432-145-0x00000000011B0000-0x00000000014FA000-memory.dmp

Filesize
3.3MB

Download
memory/1432-147-0x0000000001050000-0x0000000001064000-memory.dmp

Filesize
80KB

Download
memory/3156-148-0x00000000027C0000-0x0000000002933000-memory.dmp

Filesize
1.4MB

Download
memory/3156-157-0x0000000008340000-0x0000000008487000-memory.dmp

Filesize
1.3MB

Download
memory/3156-158-0x0000000008340000-0x0000000008487000-memory.dmp

Filesize
1.3MB

Download
memory/3156-160-0x0000000008340000-0x0000000008487000-memory.dmp

Filesize
1.3MB

Download
memory/4432-150-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/4432-151-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/4432-152-0x0000000000350000-0x000000000037F000-memory.dmp

Filesize
188KB

Download
memory/4432-153-0x00000000023E0000-0x000000000272A000-memory.dmp

Filesize
3.3MB

Download
memory/4432-154-0x0000000000350000-0x000000000037F000-memory.dmp

Filesize
188KB

Download
memory/4432-156-0x00000000022D0000-0x0000000002363000-memory.dmp

Filesize
588KB

Download