formbook | dcb50eb4e606d1db5f3438f67dd8f02a0113eda8319e602bbb7dbaec55a28f3c

General

Target

Purchase Order 77809 for acknowledgment.exe
Size

281KB
MD5

48884ebe9169015be3e42f68ad14d7be
SHA1

4c0fe63fe5090ed8ac71f3af10dfc84c9b8b0f5e
SHA256

b36d0b4952457c89f455f2333a815b0a1d7530a108bf43ea0ef1a7c17fe2774b
SHA512

9258362c161b710264767cb180913c3190c6594961d40d1fdc976babfeeb4494aab31678cc9eb75662bf48e1055c8d62de0c8c9d2f4061e3917afb325c6bc0b4

Score

10^/10

formbook y22 persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

y22

Decoy

hashafriyat.com

autoaccessorieshub.com

simelautomazioni.com

bulkappothecary.com

streaminglowcost.com

pixelraps.com

yyy9928.com

pigmansion.net

keyunix.com

bjbangshou.com

mindfulrace.com

fibuv.life

cambridgedesignpartnership.com

plumbeus.com

somebodydial911.com

atrishq.com

circcountry.com

ellenandjames.info

jeeprevivalstore.com

thetouchofjo.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4200-138-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/4200-140-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/4364-147-0x0000000000B10000-0x0000000000B3A000-memory.dmp	formbook

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\G0HHN08PUXV = "C:\\Program Files (x86)\\Z8pxhfnj0\\configrbcdwj.exe"	explorer.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Purchase Order 77809 for acknowledgment.exePurchase Order 77809 for acknowledgment.exeexplorer.exe

description	pid	process	target process
PID 1164 set thread context of 4200	1164	Purchase Order 77809 for acknowledgment.exe	Purchase Order 77809 for acknowledgment.exe
PID 4200 set thread context of 796	4200	Purchase Order 77809 for acknowledgment.exe	Explorer.EXE
PID 4364 set thread context of 796	4364	explorer.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

explorer.exe

description ioc process

File opened for modification C:\Program Files (x86)\Z8pxhfnj0\configrbcdwj.exe explorer.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Z8pxhfnj0\configrbcdwj.exe	explorer.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	explorer.exe

Suspicious behavior: EnumeratesProcesses 56 IoCs

Processes:

Purchase Order 77809 for acknowledgment.exePurchase Order 77809 for acknowledgment.exeexplorer.exe

pid	process
1164	Purchase Order 77809 for acknowledgment.exe
1164	Purchase Order 77809 for acknowledgment.exe
1164	Purchase Order 77809 for acknowledgment.exe
1164	Purchase Order 77809 for acknowledgment.exe
1164	Purchase Order 77809 for acknowledgment.exe
1164	Purchase Order 77809 for acknowledgment.exe
1164	Purchase Order 77809 for acknowledgment.exe
1164	Purchase Order 77809 for acknowledgment.exe
4200	Purchase Order 77809 for acknowledgment.exe
4200	Purchase Order 77809 for acknowledgment.exe
4200	Purchase Order 77809 for acknowledgment.exe
4200	Purchase Order 77809 for acknowledgment.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe
4364	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

796 Explorer.EXE

pid	process
796	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Purchase Order 77809 for acknowledgment.exeexplorer.exe

pid	process
4200	Purchase Order 77809 for acknowledgment.exe
4200	Purchase Order 77809 for acknowledgment.exe
4200	Purchase Order 77809 for acknowledgment.exe
4364	explorer.exe
4364	explorer.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

Purchase Order 77809 for acknowledgment.exePurchase Order 77809 for acknowledgment.exeexplorer.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1164	Purchase Order 77809 for acknowledgment.exe
Token: SeDebugPrivilege	4200	Purchase Order 77809 for acknowledgment.exe
Token: SeDebugPrivilege	4364	explorer.exe
Token: SeShutdownPrivilege	796	Explorer.EXE
Token: SeCreatePagefilePrivilege	796	Explorer.EXE
Token: SeShutdownPrivilege	796	Explorer.EXE
Token: SeCreatePagefilePrivilege	796	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

Purchase Order 77809 for acknowledgment.exeExplorer.EXEexplorer.exe

description	pid	process	target process
PID 1164 wrote to memory of 4296	1164	Purchase Order 77809 for acknowledgment.exe	Purchase Order 77809 for acknowledgment.exe
PID 1164 wrote to memory of 4296	1164	Purchase Order 77809 for acknowledgment.exe	Purchase Order 77809 for acknowledgment.exe
PID 1164 wrote to memory of 4296	1164	Purchase Order 77809 for acknowledgment.exe	Purchase Order 77809 for acknowledgment.exe
PID 1164 wrote to memory of 4272	1164	Purchase Order 77809 for acknowledgment.exe	Purchase Order 77809 for acknowledgment.exe
PID 1164 wrote to memory of 4272	1164	Purchase Order 77809 for acknowledgment.exe	Purchase Order 77809 for acknowledgment.exe
PID 1164 wrote to memory of 4272	1164	Purchase Order 77809 for acknowledgment.exe	Purchase Order 77809 for acknowledgment.exe
PID 1164 wrote to memory of 4200	1164	Purchase Order 77809 for acknowledgment.exe	Purchase Order 77809 for acknowledgment.exe
PID 1164 wrote to memory of 4200	1164	Purchase Order 77809 for acknowledgment.exe	Purchase Order 77809 for acknowledgment.exe
PID 1164 wrote to memory of 4200	1164	Purchase Order 77809 for acknowledgment.exe	Purchase Order 77809 for acknowledgment.exe
PID 1164 wrote to memory of 4200	1164	Purchase Order 77809 for acknowledgment.exe	Purchase Order 77809 for acknowledgment.exe
PID 1164 wrote to memory of 4200	1164	Purchase Order 77809 for acknowledgment.exe	Purchase Order 77809 for acknowledgment.exe
PID 1164 wrote to memory of 4200	1164	Purchase Order 77809 for acknowledgment.exe	Purchase Order 77809 for acknowledgment.exe
PID 796 wrote to memory of 4364	796	Explorer.EXE	explorer.exe
PID 796 wrote to memory of 4364	796	Explorer.EXE	explorer.exe
PID 796 wrote to memory of 4364	796	Explorer.EXE	explorer.exe
PID 4364 wrote to memory of 4540	4364	explorer.exe	cmd.exe
PID 4364 wrote to memory of 4540	4364	explorer.exe	cmd.exe
PID 4364 wrote to memory of 4540	4364	explorer.exe	cmd.exe
PID 4364 wrote to memory of 4672	4364	explorer.exe	cmd.exe
PID 4364 wrote to memory of 4672	4364	explorer.exe	cmd.exe
PID 4364 wrote to memory of 4672	4364	explorer.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:796
- C:\Users\Admin\AppData\Local\Temp\Purchase Order 77809 for acknowledgment.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase Order 77809 for acknowledgment.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1164
- - C:\Users\Admin\AppData\Local\Temp\Purchase Order 77809 for acknowledgment.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order 77809 for acknowledgment.exe"
    3⤵
    PID:4296
- - C:\Users\Admin\AppData\Local\Temp\Purchase Order 77809 for acknowledgment.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order 77809 for acknowledgment.exe"
    3⤵
    PID:4272
- - C:\Users\Admin\AppData\Local\Temp\Purchase Order 77809 for acknowledgment.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order 77809 for acknowledgment.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4200
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4364
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Purchase Order 77809 for acknowledgment.exe"
    3⤵
    PID:4540
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    PID:4672

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1

Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Admin\AppData\Roaming\1P02057U\1P0logim.jpeg

Filesize
81KB

MD5
a361d971db0d1bc52b4eb0b95242367a

SHA1
964c0dd9bba610901e7ca29c711e3acccced7a6c

SHA256
237f988750ec59aa94bfab69677687315aa3f2466b5058609d8319ef5f6a5a89

SHA512
733a07b59b0715ffdb1123565b1c6f4bc07e7d7a10972dec06f81abdea7ebf8d4b777f0e028e6a719f72bf9df4378c66c36d8a84cced42978b8e4100732511b0

Download Submit
C:\Users\Admin\AppData\Roaming\1P02057U\1P0logrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\1P02057U\1P0logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\1P02057U\1P0logrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/796-143-0x0000000002CB0000-0x0000000002D6F000-memory.dmp

Filesize
764KB

Download
memory/796-150-0x0000000002D70000-0x0000000002EF7000-memory.dmp

Filesize
1.5MB

Download
memory/1164-134-0x0000000006940000-0x00000000069DC000-memory.dmp

Filesize
624KB

Download
memory/1164-130-0x0000000000EF0000-0x0000000000F3C000-memory.dmp

Filesize
304KB

Download
memory/1164-133-0x0000000005C80000-0x0000000005C8A000-memory.dmp

Filesize
40KB

Download
memory/1164-132-0x0000000005AF0000-0x0000000005B82000-memory.dmp

Filesize
584KB

Download
memory/1164-131-0x0000000005EC0000-0x0000000006464000-memory.dmp

Filesize
5.6MB

Download
memory/4200-138-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4200-140-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4200-141-0x00000000017E0000-0x0000000001B2A000-memory.dmp

Filesize
3.3MB

Download
memory/4200-142-0x00000000017A0000-0x00000000017B4000-memory.dmp

Filesize
80KB

Download
memory/4200-137-0x0000000000000000-mapping.dmp

Download
memory/4272-136-0x0000000000000000-mapping.dmp

Download
memory/4296-135-0x0000000000000000-mapping.dmp

Download
memory/4364-149-0x0000000002AE0000-0x0000000002B73000-memory.dmp

Filesize
588KB

Download
memory/4364-148-0x0000000002C90000-0x0000000002FDA000-memory.dmp

Filesize
3.3MB

Download
memory/4364-147-0x0000000000B10000-0x0000000000B3A000-memory.dmp

Filesize
168KB

Download
memory/4364-146-0x00000000005C0000-0x00000000009F3000-memory.dmp

Filesize
4.2MB

Download
memory/4364-144-0x0000000000000000-mapping.dmp

Download
memory/4540-145-0x0000000000000000-mapping.dmp

Download
memory/4672-151-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads