formbook | a7ac86859df3916a97fb2dff315541ad5f53075a6d4d6f151478ff083192ea24

General

Target

RFQ#7018.exe
Size

304KB
MD5

ff63351b26aa98482e65c848d3c81dba
SHA1

a12eac529a3e6f4f54ef3132077ede6fadac14ee
SHA256

e2234312d9f3cca21a317e8fddb427b2dd315cd69f9c1cc3606016c154fa4182
SHA512

656a29f833f50921196bcee13f39ad6eb2c2f7f4aaedf471b3517d6b366354579e3f103d2e2ac3c398b5a1be647149825d58f240defd07a430a6aa3f811fedd5

Score

10^/10

formbook 20w persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

20w

Decoy

cofounder.technology

mrbajaf.com

xn--w9s874cfjq5fk.com

haliciogluhali.net

vanessadunfordhere.com

lookguy.win

91javac.com

goldennd.com

nwatheeliteteam.net

tumpukganda.com

clarservicios.com

koghana.com

workingwithroland.com

yellowsocialbox.com

under-dawg.com

sdtjtzyz.com

banditaerialproductions.com

newssmog.com

tefnmp.men

rebelialabel.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

Formbook Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1328-138-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/1180-146-0x0000000000E30000-0x0000000000E5A000-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:

cmstp.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	cmstp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\VRQLPV18KZ = "C:\\Program Files (x86)\\Dons\\user1bd.exe"	cmstp.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#7018.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	RFQ#7018.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

Suspicious use of SetThreadContext 3 IoCs

Processes:

RFQ#7018.exeRFQ#7018.execmstp.exe

description	pid	process	target process
PID 4548 set thread context of 1328	4548	RFQ#7018.exe	RFQ#7018.exe
PID 1328 set thread context of 3020	1328	RFQ#7018.exe	Explorer.EXE
PID 1180 set thread context of 3020	1180	cmstp.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

cmstp.exe

description ioc process

File opened for modification C:\Program Files (x86)\Dons\user1bd.exe cmstp.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

4332 schtasks.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Dons\user1bd.exe	cmstp.exe

pid	process
4332	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmstp.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmstp.exe

Suspicious behavior: EnumeratesProcesses 43 IoCs

Processes:

RFQ#7018.exeRFQ#7018.execmstp.exe

pid	process
4548	RFQ#7018.exe
1328	RFQ#7018.exe
1328	RFQ#7018.exe
1328	RFQ#7018.exe
1328	RFQ#7018.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe
1180	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3020 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RFQ#7018.execmstp.exe

pid process

1328 RFQ#7018.exe
1328 RFQ#7018.exe
1328 RFQ#7018.exe
1180 cmstp.exe
1180 cmstp.exe

pid	process
3020	Explorer.EXE

pid	process
1328	RFQ#7018.exe
1328	RFQ#7018.exe
1328	RFQ#7018.exe
1180	cmstp.exe
1180	cmstp.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

RFQ#7018.exeRFQ#7018.execmstp.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	4548	RFQ#7018.exe
Token: SeDebugPrivilege	1328	RFQ#7018.exe
Token: SeDebugPrivilege	1180	cmstp.exe
Token: SeShutdownPrivilege	3020	Explorer.EXE
Token: SeCreatePagefilePrivilege	3020	Explorer.EXE
Token: SeShutdownPrivilege	3020	Explorer.EXE
Token: SeCreatePagefilePrivilege	3020	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

RFQ#7018.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 4548 wrote to memory of 4332	4548	RFQ#7018.exe	schtasks.exe
PID 4548 wrote to memory of 4332	4548	RFQ#7018.exe	schtasks.exe
PID 4548 wrote to memory of 4332	4548	RFQ#7018.exe	schtasks.exe
PID 4548 wrote to memory of 1328	4548	RFQ#7018.exe	RFQ#7018.exe
PID 4548 wrote to memory of 1328	4548	RFQ#7018.exe	RFQ#7018.exe
PID 4548 wrote to memory of 1328	4548	RFQ#7018.exe	RFQ#7018.exe
PID 4548 wrote to memory of 1328	4548	RFQ#7018.exe	RFQ#7018.exe
PID 4548 wrote to memory of 1328	4548	RFQ#7018.exe	RFQ#7018.exe
PID 4548 wrote to memory of 1328	4548	RFQ#7018.exe	RFQ#7018.exe
PID 3020 wrote to memory of 1180	3020	Explorer.EXE	cmstp.exe
PID 3020 wrote to memory of 1180	3020	Explorer.EXE	cmstp.exe
PID 3020 wrote to memory of 1180	3020	Explorer.EXE	cmstp.exe
PID 1180 wrote to memory of 1948	1180	cmstp.exe	cmd.exe
PID 1180 wrote to memory of 1948	1180	cmstp.exe	cmd.exe
PID 1180 wrote to memory of 1948	1180	cmstp.exe	cmd.exe
PID 1180 wrote to memory of 2196	1180	cmstp.exe	cmd.exe
PID 1180 wrote to memory of 2196	1180	cmstp.exe	cmd.exe
PID 1180 wrote to memory of 2196	1180	cmstp.exe	cmd.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

cmstp.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer cmstp.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	cmstp.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3020

C:\Users\Admin\AppData\Local\Temp\RFQ#7018.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ#7018.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4548

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RIEsscrX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp702F.tmp"
3⤵
- Creates scheduled task(s)
PID:4332

C:\Users\Admin\AppData\Local\Temp\RFQ#7018.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1328

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.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
- System policy modification
PID:1180

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\RFQ#7018.exe"
3⤵
PID:1948

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:2196

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

3

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\Local\Temp\tmp702F.tmp
Filesize
1KB

MD5
8390130264a01180cdb8821506c8c541

SHA1
fd9bc892c82fb75a493893be0f2b027d002d5bc0

SHA256
65734d63b992058d5c1e56a1e550420d47dff12181d01c7bba5fee87ae2fd30c

SHA512
fb7dc77d7efe28f0e85655ac1263c12847ca71f2e069b889ed3611be06eab0169cf048282e3586354f82a0db6a862d5e7375af58bee5920d207729d838f1d98d

Download Submit
C:\Users\Admin\AppData\Roaming\O4L7O-33\O4Llogrg.ini
Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\O4L7O-33\O4Llogri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\O4L7O-33\O4Llogrv.ini
Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/1180-143-0x0000000000000000-mapping.dmp

Download
memory/1180-145-0x0000000000FB0000-0x0000000000FC6000-memory.dmp

Filesize
88KB

Download
memory/1180-148-0x0000000002DE0000-0x0000000002E73000-memory.dmp

Filesize
588KB

Download
memory/1180-147-0x0000000002FA0000-0x00000000032EA000-memory.dmp

Filesize
3.3MB

Download
memory/1180-146-0x0000000000E30000-0x0000000000E5A000-memory.dmp

Filesize
168KB

Download
memory/1328-141-0x0000000001100000-0x0000000001114000-memory.dmp

Filesize
80KB

Download
memory/1328-137-0x0000000000000000-mapping.dmp

Download
memory/1328-138-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1328-139-0x00000000015A0000-0x00000000018EA000-memory.dmp

Filesize
3.3MB

Download
memory/1948-144-0x0000000000000000-mapping.dmp

Download
memory/2196-150-0x0000000000000000-mapping.dmp

Download
memory/3020-142-0x0000000007C10000-0x0000000007D45000-memory.dmp

Filesize
1.2MB

Download
memory/3020-149-0x0000000007D50000-0x0000000007EDA000-memory.dmp

Filesize
1.5MB

Download
memory/4332-135-0x0000000000000000-mapping.dmp

Download
memory/4548-130-0x0000000000430000-0x0000000000482000-memory.dmp

Filesize
328KB

Download
memory/4548-134-0x0000000007570000-0x000000000760C000-memory.dmp

Filesize
624KB

Download
memory/4548-133-0x0000000004E30000-0x0000000004E3A000-memory.dmp

Filesize
40KB

Download
memory/4548-132-0x0000000004E70000-0x0000000004F02000-memory.dmp

Filesize
584KB

Download
memory/4548-131-0x0000000005380000-0x0000000005924000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads