formbook | 830100a3246670a17c2e0c4efe473210d9d31dc90bb3e7c1aee8a0039d63641d

General

Target

RFQ REF #208056_pdf.exe
Size

728KB
MD5

f3b1f1b9b303a7a50481a0acd5aee6ac
SHA1

c50dd6f9de9bcb477f8fed61eb706a71ed8a7522
SHA256

0c91c97182b3f1389437d15ff6aaa935156fc5ecc1c71c5588c0d831943acf4e
SHA512

68f469f626b423d20b4103f4ea23fc875c286df57a157302144aaf15310802f5dad06d1d370b50181a5c52e68301ef74c0fab92575ea4061b7b3c0ad196365c1

Score

10^/10

formbook netwire jb9 botnet persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

netwire

C2

185.234.216.161:4017

Attributes

activex_autorun
false
activex_key
copy_executable
false
delete_original
false
host_id
HostId-%Rand%
install_path
keylogger_dir
%AppData%\Logs\
lock_executable
false
mutex
fplGYvgE
offline_keylogger
true
password
Pa$$word
registry_autorun
false
startup_name
use_mutex
true

Extracted

Family

formbook

Version

3.9

Campaign

jb9

Decoy

cloud-medical.com

maximtech-bd.com

3d-sprint.com

624vhw.info

nexdesk.net

flxcustomsigns.com

gvuzejobxa.info

xiaobaokm.com

565mt.com

servicioscuery.com

500360.biz

stephanieshermanart.com

boozebird.com

merckcousa.com

frenchkissldn.com

lucyfaulknerllc.com

egekartus.com

bookyabber.com

cardiacimaginginpractice.com

deucessound.com

Signatures

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

NetWire RAT payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4760-130-0x0000000000E90000-0x0000000000F4C000-memory.dmp	netwire
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Host.exe	netwire
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Host.exe	netwire

Netwire
Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.
botnet stealer netwire
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 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2796-137-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/4644-145-0x0000000001240000-0x000000000126A000-memory.dmp	formbook

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	raserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\INRXXRDXS = "C:\\Program Files (x86)\\Pyzalaxth\\qdhhspa.exe"	raserver.exe

Executes dropped EXE 1 IoCs

Processes:

Host.exe

pid process

4420 Host.exe

pid	process
4420	Host.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

RFQ REF #208056_pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	RFQ REF #208056_pdf.exe

Drops startup file 1 IoCs

Processes:

RFQ REF #208056_pdf.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Host.exe RFQ REF #208056_pdf.exe
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

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Host.exe	RFQ REF #208056_pdf.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

RFQ REF #208056_pdf.exeRFQ REF #208056_pdf.exeraserver.exe

description	pid	process	target process
PID 4760 set thread context of 2796	4760	RFQ REF #208056_pdf.exe	RFQ REF #208056_pdf.exe
PID 2796 set thread context of 2652	2796	RFQ REF #208056_pdf.exe	Explorer.EXE
PID 4644 set thread context of 2652	4644	raserver.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

raserver.exe

description ioc process

File opened for modification C:\Program Files (x86)\Pyzalaxth\qdhhspa.exe raserver.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Program Files (x86)\Pyzalaxth\qdhhspa.exe	raserver.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

raserver.exe

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

Suspicious behavior: EnumeratesProcesses 55 IoCs

Processes:

RFQ REF #208056_pdf.exeRFQ REF #208056_pdf.exeraserver.exe

pid	process
4760	RFQ REF #208056_pdf.exe
4760	RFQ REF #208056_pdf.exe
4760	RFQ REF #208056_pdf.exe
2796	RFQ REF #208056_pdf.exe
2796	RFQ REF #208056_pdf.exe
2796	RFQ REF #208056_pdf.exe
2796	RFQ REF #208056_pdf.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe
4644	raserver.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2652 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RFQ REF #208056_pdf.exeraserver.exe

pid process

2796 RFQ REF #208056_pdf.exe
2796 RFQ REF #208056_pdf.exe
2796 RFQ REF #208056_pdf.exe
4644 raserver.exe
4644 raserver.exe

pid	process
2652	Explorer.EXE

pid	process
2796	RFQ REF #208056_pdf.exe
2796	RFQ REF #208056_pdf.exe
2796	RFQ REF #208056_pdf.exe
4644	raserver.exe
4644	raserver.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

RFQ REF #208056_pdf.exeRFQ REF #208056_pdf.exeraserver.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	4760	RFQ REF #208056_pdf.exe
Token: SeDebugPrivilege	2796	RFQ REF #208056_pdf.exe
Token: SeDebugPrivilege	4644	raserver.exe
Token: SeShutdownPrivilege	2652	Explorer.EXE
Token: SeCreatePagefilePrivilege	2652	Explorer.EXE
Token: SeShutdownPrivilege	2652	Explorer.EXE
Token: SeCreatePagefilePrivilege	2652	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

RFQ REF #208056_pdf.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 4760 wrote to memory of 4420	4760	RFQ REF #208056_pdf.exe	Host.exe
PID 4760 wrote to memory of 4420	4760	RFQ REF #208056_pdf.exe	Host.exe
PID 4760 wrote to memory of 4420	4760	RFQ REF #208056_pdf.exe	Host.exe
PID 4760 wrote to memory of 2796	4760	RFQ REF #208056_pdf.exe	RFQ REF #208056_pdf.exe
PID 4760 wrote to memory of 2796	4760	RFQ REF #208056_pdf.exe	RFQ REF #208056_pdf.exe
PID 4760 wrote to memory of 2796	4760	RFQ REF #208056_pdf.exe	RFQ REF #208056_pdf.exe
PID 4760 wrote to memory of 2796	4760	RFQ REF #208056_pdf.exe	RFQ REF #208056_pdf.exe
PID 4760 wrote to memory of 2796	4760	RFQ REF #208056_pdf.exe	RFQ REF #208056_pdf.exe
PID 4760 wrote to memory of 2796	4760	RFQ REF #208056_pdf.exe	RFQ REF #208056_pdf.exe
PID 2652 wrote to memory of 4644	2652	Explorer.EXE	raserver.exe
PID 2652 wrote to memory of 4644	2652	Explorer.EXE	raserver.exe
PID 2652 wrote to memory of 4644	2652	Explorer.EXE	raserver.exe
PID 4644 wrote to memory of 4328	4644	raserver.exe	cmd.exe
PID 4644 wrote to memory of 4328	4644	raserver.exe	cmd.exe
PID 4644 wrote to memory of 4328	4644	raserver.exe	cmd.exe
PID 4644 wrote to memory of 4796	4644	raserver.exe	cmd.exe
PID 4644 wrote to memory of 4796	4644	raserver.exe	cmd.exe
PID 4644 wrote to memory of 4796	4644	raserver.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2652

C:\Users\Admin\AppData\Local\Temp\RFQ REF #208056_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ REF #208056_pdf.exe"
2⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4760

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Host.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Host.exe"
3⤵
- Executes dropped EXE
PID:4420

C:\Users\Admin\AppData\Local\Temp\RFQ REF #208056_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ REF #208056_pdf.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2796

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Adds policy 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:4644

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\RFQ REF #208056_pdf.exe"
3⤵
PID:4328

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:4796

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

Query Registry

1

T1012

System Information Discovery

2

T1082

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
C:\Users\Admin\AppData\Roaming\78L53P6E\78Llogim.jpeg
Filesize
82KB

MD5
58e9c1b3f7340cac0accf0941b0f2f93

SHA1
f043622bbc5e382b63f440d7aa5e086e7c65078d

SHA256
94302bd6eb347c8292d16eb59ff6722a0225820bf62e3c73368c59212b63ccfa

SHA512
62e4148b46f33587819e679e42ebf75d8a38ac5171327dc62c310580bd8f774e5194e8db79adf18cc777fcc444cee0f5d6e8c17d79874acfe4cc648572d6d15c

Download Submit
C:\Users\Admin\AppData\Roaming\78L53P6E\78Llogrg.ini
Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\78L53P6E\78Llogri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\78L53P6E\78Llogrv.ini
Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Host.exe
Filesize
160KB

MD5
f000f775776d430bc01bcb1930c5f10d

SHA1
9b4ccaec45f064b10a5eed138bfb3bda4f59dd26

SHA256
a54ed82222db62dcb15f901be732ae8b46753a46ba3b4970bf367aa73053ddc2

SHA512
0b1d98877a48f552afd6bad5424a07690c289f7eab338cdb3acdc4fb0b49ce33562dee63bd04397588f06d323e9572997d65f97530d95ac38ee350406080fc3b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Host.exe
Filesize
160KB

MD5
f000f775776d430bc01bcb1930c5f10d

SHA1
9b4ccaec45f064b10a5eed138bfb3bda4f59dd26

SHA256
a54ed82222db62dcb15f901be732ae8b46753a46ba3b4970bf367aa73053ddc2

SHA512
0b1d98877a48f552afd6bad5424a07690c289f7eab338cdb3acdc4fb0b49ce33562dee63bd04397588f06d323e9572997d65f97530d95ac38ee350406080fc3b

Download Submit
memory/2652-141-0x0000000008B50000-0x0000000008CDB000-memory.dmp

Filesize
1.5MB

Download
memory/2652-148-0x00000000087B0000-0x000000000886E000-memory.dmp

Filesize
760KB

Download
memory/2796-136-0x0000000000000000-mapping.dmp

Download
memory/2796-140-0x0000000000DC0000-0x0000000000DD4000-memory.dmp

Filesize
80KB

Download
memory/2796-138-0x0000000001360000-0x00000000016AA000-memory.dmp

Filesize
3.3MB

Download
memory/2796-137-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4328-143-0x0000000000000000-mapping.dmp

Download
memory/4420-133-0x0000000000000000-mapping.dmp

Download
memory/4644-145-0x0000000001240000-0x000000000126A000-memory.dmp

Filesize
168KB

Download
memory/4644-146-0x00000000031A0000-0x00000000034EA000-memory.dmp

Filesize
3.3MB

Download
memory/4644-144-0x0000000000E20000-0x0000000000E3F000-memory.dmp

Filesize
124KB

Download
memory/4644-147-0x00000000030B0000-0x0000000003143000-memory.dmp

Filesize
588KB

Download
memory/4644-142-0x0000000000000000-mapping.dmp

Download
memory/4760-130-0x0000000000E90000-0x0000000000F4C000-memory.dmp

Filesize
752KB

Download
memory/4760-132-0x0000000007EC0000-0x0000000007F52000-memory.dmp

Filesize
584KB

Download
memory/4760-131-0x0000000008370000-0x0000000008914000-memory.dmp

Filesize
5.6MB

Download
memory/4796-149-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads