formbook | f02b9aaeb8bb7359fdd8fc85f693292d863a481eea4213e066661a35c52087fe

General

Target

PO_CS009.exe
Size

362KB
MD5

08b794da39ef13910c12b15e072c1edd
SHA1

b0e926330b4b67e823c2a12e9b8fa789a1b9291f
SHA256

4092b0f7ea14add16e6f6f35071b074458a19d4550af50a80ed5742cc7046568
SHA512

97822a1eb2197352f67037ec6b3c6cf8b0a54ebac288f84d3a254d1b1af2c53e2a5db4e3a13e91df80d4ce127a033485915e01f47fa0ecd6edd0d778655a0156

Score

10^/10

formbook q5e persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

q5e

Decoy

2177.ltd

thanxiety.com

max-width.com

fixti.net

mostmaj.com

mobilteknolojiuzmani.com

historyannals.com

wheelchairmotion.com

mossandmoonstonestudio.com

kastellifournis.com

axokey.net

peekl.com

metsteeshirt.com

abcfinancial-inc.com

btxrsp.com

amydh.com

ccoauthority.com

lumacorretora.com

kimfelixrealtor.com

iconext.biz

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

Formbook Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4760-136-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral2/memory/820-144-0x0000000000370000-0x000000000039D000-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:

wlanext.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	wlanext.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\8PXLWJQ85J = "C:\\Program Files (x86)\\Xqjaldxn\\hp9l_rizghdn.exe"	wlanext.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO_CS009.exePO_CS009.exewlanext.exe

description	pid	process	target process
PID 4664 set thread context of 4760	4664	PO_CS009.exe	PO_CS009.exe
PID 4760 set thread context of 1504	4760	PO_CS009.exe	Explorer.EXE
PID 820 set thread context of 1504	820	wlanext.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

wlanext.exe

description ioc process

File opened for modification C:\Program Files (x86)\Xqjaldxn\hp9l_rizghdn.exe wlanext.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Xqjaldxn\hp9l_rizghdn.exe	wlanext.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wlanext.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wlanext.exe

Suspicious behavior: EnumeratesProcesses 47 IoCs

Processes:

PO_CS009.exePO_CS009.exewlanext.exe

pid	process
4664	PO_CS009.exe
4664	PO_CS009.exe
4664	PO_CS009.exe
4760	PO_CS009.exe
4760	PO_CS009.exe
4760	PO_CS009.exe
4760	PO_CS009.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1504 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

PO_CS009.exewlanext.exe

pid process

4760 PO_CS009.exe
4760 PO_CS009.exe
4760 PO_CS009.exe
820 wlanext.exe
820 wlanext.exe
820 wlanext.exe
820 wlanext.exe

pid	process
1504	Explorer.EXE

pid	process
4760	PO_CS009.exe
4760	PO_CS009.exe
4760	PO_CS009.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe
820	wlanext.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

PO_CS009.exePO_CS009.exewlanext.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	4664	PO_CS009.exe
Token: SeDebugPrivilege	4760	PO_CS009.exe
Token: SeDebugPrivilege	820	wlanext.exe
Token: SeShutdownPrivilege	1504	Explorer.EXE
Token: SeCreatePagefilePrivilege	1504	Explorer.EXE
Token: SeShutdownPrivilege	1504	Explorer.EXE
Token: SeCreatePagefilePrivilege	1504	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

PO_CS009.exeExplorer.EXEwlanext.exe

description	pid	process	target process
PID 4664 wrote to memory of 3544	4664	PO_CS009.exe	PO_CS009.exe
PID 4664 wrote to memory of 3544	4664	PO_CS009.exe	PO_CS009.exe
PID 4664 wrote to memory of 3544	4664	PO_CS009.exe	PO_CS009.exe
PID 4664 wrote to memory of 4760	4664	PO_CS009.exe	PO_CS009.exe
PID 4664 wrote to memory of 4760	4664	PO_CS009.exe	PO_CS009.exe
PID 4664 wrote to memory of 4760	4664	PO_CS009.exe	PO_CS009.exe
PID 4664 wrote to memory of 4760	4664	PO_CS009.exe	PO_CS009.exe
PID 4664 wrote to memory of 4760	4664	PO_CS009.exe	PO_CS009.exe
PID 4664 wrote to memory of 4760	4664	PO_CS009.exe	PO_CS009.exe
PID 1504 wrote to memory of 820	1504	Explorer.EXE	wlanext.exe
PID 1504 wrote to memory of 820	1504	Explorer.EXE	wlanext.exe
PID 1504 wrote to memory of 820	1504	Explorer.EXE	wlanext.exe
PID 820 wrote to memory of 3200	820	wlanext.exe	cmd.exe
PID 820 wrote to memory of 3200	820	wlanext.exe	cmd.exe
PID 820 wrote to memory of 3200	820	wlanext.exe	cmd.exe
PID 820 wrote to memory of 4444	820	wlanext.exe	cmd.exe
PID 820 wrote to memory of 4444	820	wlanext.exe	cmd.exe
PID 820 wrote to memory of 4444	820	wlanext.exe	cmd.exe
PID 820 wrote to memory of 4772	820	wlanext.exe	Firefox.exe
PID 820 wrote to memory of 4772	820	wlanext.exe	Firefox.exe
PID 820 wrote to memory of 4772	820	wlanext.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1504

C:\Users\Admin\AppData\Local\Temp\PO_CS009.exe
"C:\Users\Admin\AppData\Local\Temp\PO_CS009.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4664

C:\Users\Admin\AppData\Local\Temp\PO_CS009.exe
"{path}"
3⤵
PID:3544

C:\Users\Admin\AppData\Local\Temp\PO_CS009.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4760

C:\Windows\SysWOW64\wlanext.exe
"C:\Windows\SysWOW64\wlanext.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:820

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PO_CS009.exe"
3⤵
PID:3200

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:4444

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4772

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

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
memory/820-146-0x0000000000AD0000-0x0000000000B63000-memory.dmp

Filesize
588KB

Download
memory/820-145-0x0000000000FD0000-0x000000000131A000-memory.dmp

Filesize
3.3MB

Download
memory/820-144-0x0000000000370000-0x000000000039D000-memory.dmp

Filesize
180KB

Download
memory/820-143-0x0000000000FB0000-0x0000000000FC7000-memory.dmp

Filesize
92KB

Download
memory/820-141-0x0000000000000000-mapping.dmp

Download
memory/1504-140-0x0000000007C90000-0x0000000007E02000-memory.dmp

Filesize
1.4MB

Download
memory/1504-147-0x0000000002580000-0x000000000261C000-memory.dmp

Filesize
624KB

Download
memory/3200-142-0x0000000000000000-mapping.dmp

Download
memory/3544-134-0x0000000000000000-mapping.dmp

Download
memory/4444-148-0x0000000000000000-mapping.dmp

Download
memory/4664-130-0x0000000000C50000-0x0000000000CB0000-memory.dmp

Filesize
384KB

Download
memory/4664-133-0x0000000006430000-0x00000000069D4000-memory.dmp

Filesize
5.6MB

Download
memory/4664-132-0x0000000005800000-0x000000000589C000-memory.dmp

Filesize
624KB

Download
memory/4664-131-0x0000000005760000-0x00000000057F2000-memory.dmp

Filesize
584KB

Download
memory/4760-139-0x0000000000AB0000-0x0000000000AC4000-memory.dmp

Filesize
80KB

Download
memory/4760-138-0x0000000000F60000-0x00000000012AA000-memory.dmp

Filesize
3.3MB

Download
memory/4760-136-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/4760-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads