formbook | 3214e7cd557426e9574963492a10f788d059f53c08ace388341fcfed32945c36

General

Target

nalog za kupovinu.exe
Size

715KB
MD5

0d38fa5f3688fd03f6ed4a1185427d9c
SHA1

91f943a7793eb56c425693ff7f3bfa206cc64ea2
SHA256

7df633d240b956e23b7328ae7121f7efc2a80090dbe38f2e0138d90084a795fe
SHA512

bc5eef6f6dc81583810fd073c14318414d421124620f75fa94e2c0a9035a16f9e88eae44ab3b487044d4aa54ec793af69e73be041bd1cdfec12235e217290007

Score

10^/10

formbook kvsz persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

kvsz

Decoy

okashyns.com

sbsgamedaejeon-two.com

drb77.com

top5dating.com

websprings.online

voizers.com

zenith.site

lahistoriade.com

qv85.com

armandonieto.com

priestvedic.com

jessandjeff.net

magic-desktop.com

jitaji.com

ldmeili.com

yuwanqingmy.com

buzhouorg.com

chaiseloungereviews.com

m2g8way.com

freespin-support.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 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/728-137-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/4548-144-0x0000000000D10000-0x0000000000D3E000-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:

wscript.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\NFRT7BM = "C:\\Program Files (x86)\\Hyr5t\\z4flgbmn2tp.exe"	wscript.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:

nalog za kupovinu.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	nalog za kupovinu.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:

nalog za kupovinu.exeRegSvcs.exewscript.exe

description	pid	process	target process
PID 4476 set thread context of 728	4476	nalog za kupovinu.exe	RegSvcs.exe
PID 728 set thread context of 2812	728	RegSvcs.exe	Explorer.EXE
PID 4548 set thread context of 2812	4548	wscript.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

wscript.exe

description ioc process

File opened for modification C:\Program Files (x86)\Hyr5t\z4flgbmn2tp.exe wscript.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

1472 schtasks.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Hyr5t\z4flgbmn2tp.exe	wscript.exe

pid	process
1472	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wscript.exe

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

Suspicious behavior: EnumeratesProcesses 50 IoCs

Processes:

nalog za kupovinu.exeRegSvcs.exewscript.exe

pid	process
4476	nalog za kupovinu.exe
4476	nalog za kupovinu.exe
4476	nalog za kupovinu.exe
4476	nalog za kupovinu.exe
4476	nalog za kupovinu.exe
4476	nalog za kupovinu.exe
4476	nalog za kupovinu.exe
4476	nalog za kupovinu.exe
728	RegSvcs.exe
728	RegSvcs.exe
728	RegSvcs.exe
728	RegSvcs.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2812 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

RegSvcs.exewscript.exe

pid process

728 RegSvcs.exe
728 RegSvcs.exe
728 RegSvcs.exe
4548 wscript.exe
4548 wscript.exe
4548 wscript.exe
4548 wscript.exe

pid	process
2812	Explorer.EXE

pid	process
728	RegSvcs.exe
728	RegSvcs.exe
728	RegSvcs.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe
4548	wscript.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

nalog za kupovinu.exeRegSvcs.exewscript.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	4476	nalog za kupovinu.exe
Token: SeDebugPrivilege	728	RegSvcs.exe
Token: SeDebugPrivilege	4548	wscript.exe
Token: SeShutdownPrivilege	2812	Explorer.EXE
Token: SeCreatePagefilePrivilege	2812	Explorer.EXE
Token: SeShutdownPrivilege	2812	Explorer.EXE
Token: SeCreatePagefilePrivilege	2812	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

nalog za kupovinu.exeExplorer.EXEwscript.exe

description	pid	process	target process
PID 4476 wrote to memory of 1472	4476	nalog za kupovinu.exe	schtasks.exe
PID 4476 wrote to memory of 1472	4476	nalog za kupovinu.exe	schtasks.exe
PID 4476 wrote to memory of 1472	4476	nalog za kupovinu.exe	schtasks.exe
PID 4476 wrote to memory of 1044	4476	nalog za kupovinu.exe	RegSvcs.exe
PID 4476 wrote to memory of 1044	4476	nalog za kupovinu.exe	RegSvcs.exe
PID 4476 wrote to memory of 1044	4476	nalog za kupovinu.exe	RegSvcs.exe
PID 4476 wrote to memory of 728	4476	nalog za kupovinu.exe	RegSvcs.exe
PID 4476 wrote to memory of 728	4476	nalog za kupovinu.exe	RegSvcs.exe
PID 4476 wrote to memory of 728	4476	nalog za kupovinu.exe	RegSvcs.exe
PID 4476 wrote to memory of 728	4476	nalog za kupovinu.exe	RegSvcs.exe
PID 4476 wrote to memory of 728	4476	nalog za kupovinu.exe	RegSvcs.exe
PID 4476 wrote to memory of 728	4476	nalog za kupovinu.exe	RegSvcs.exe
PID 2812 wrote to memory of 4548	2812	Explorer.EXE	wscript.exe
PID 2812 wrote to memory of 4548	2812	Explorer.EXE	wscript.exe
PID 2812 wrote to memory of 4548	2812	Explorer.EXE	wscript.exe
PID 4548 wrote to memory of 3700	4548	wscript.exe	cmd.exe
PID 4548 wrote to memory of 3700	4548	wscript.exe	cmd.exe
PID 4548 wrote to memory of 3700	4548	wscript.exe	cmd.exe
PID 4548 wrote to memory of 3568	4548	wscript.exe	cmd.exe
PID 4548 wrote to memory of 3568	4548	wscript.exe	cmd.exe
PID 4548 wrote to memory of 3568	4548	wscript.exe	cmd.exe
PID 4548 wrote to memory of 2120	4548	wscript.exe	Firefox.exe
PID 4548 wrote to memory of 2120	4548	wscript.exe	Firefox.exe
PID 4548 wrote to memory of 2120	4548	wscript.exe	Firefox.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

wscript.exe

description ioc process

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

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2812

C:\Users\Admin\AppData\Local\Temp\nalog za kupovinu.exe
"C:\Users\Admin\AppData\Local\Temp\nalog za kupovinu.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4476

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5488.tmp"
3⤵
- Creates scheduled task(s)
PID:1472

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
3⤵
PID:1044

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:728

C:\Windows\SysWOW64\wscript.exe
"C:\Windows\SysWOW64\wscript.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:4548

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:3700

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:3568

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:2120

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\tmp5488.tmp
Filesize
1KB

MD5
ab9f8a9574d9209cd8666decb37e33cc

SHA1
b768b98d37b96bcf5eeeb4bae10589a196b66db2

SHA256
2c052172f943620c36053efd2ab1d6ef9fbb671c55669b9f49430f0f7acd7704

SHA512
5059538580cce17a2c7516e3117297310455e38ff32d51c6e17ef188448ce3567f9c968ad478df725ed2ce8630ceee2340246264a6e60877895591a67d45da70

Download Submit
C:\Users\Admin\AppData\Roaming\4-6P1RQE\4-6logim.jpeg
Filesize
84KB

MD5
655097c58ef0fae23b4a5c925c9b281f

SHA1
cdc46ed10ad3d3aec3d9b20bae502a4c9f8a5d2d

SHA256
b3149ea7d96314dc203fb84bdf1d20be94485de19d812ae823c5b1deb0e43222

SHA512
7a750c73ac6d55e81e7da662ec1bc56e35c529f031ecebd6534d6f8ff477288b6e47c2db3beb90dc1e2bda59ab87e62a1a06eda554ca2e8a89aecc7d88c624a3

Download Submit
C:\Users\Admin\AppData\Roaming\4-6P1RQE\4-6logrf.ini
Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\4-6P1RQE\4-6logrg.ini
Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\4-6P1RQE\4-6logri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\4-6P1RQE\4-6logrv.ini
Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/728-140-0x0000000001240000-0x0000000001254000-memory.dmp

Filesize
80KB

Download
memory/728-139-0x0000000000EF0000-0x000000000123A000-memory.dmp

Filesize
3.3MB

Download
memory/728-137-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/728-136-0x0000000000000000-mapping.dmp

Download
memory/1044-135-0x0000000000000000-mapping.dmp

Download
memory/1472-133-0x0000000000000000-mapping.dmp

Download
memory/2812-148-0x0000000008410000-0x0000000008534000-memory.dmp

Filesize
1.1MB

Download
memory/2812-141-0x00000000082A0000-0x0000000008401000-memory.dmp

Filesize
1.4MB

Download
memory/3568-149-0x0000000000000000-mapping.dmp

Download
memory/3700-146-0x0000000000000000-mapping.dmp

Download
memory/4476-130-0x0000000000800000-0x00000000008BA000-memory.dmp

Filesize
744KB

Download
memory/4476-132-0x0000000007AB0000-0x0000000007B42000-memory.dmp

Filesize
584KB

Download
memory/4476-131-0x0000000007970000-0x0000000007A0C000-memory.dmp

Filesize
624KB

Download
memory/4548-147-0x0000000002BA0000-0x0000000002C33000-memory.dmp

Filesize
588KB

Download
memory/4548-145-0x0000000002D30000-0x000000000307A000-memory.dmp

Filesize
3.3MB

Download
memory/4548-144-0x0000000000D10000-0x0000000000D3E000-memory.dmp

Filesize
184KB

Download
memory/4548-143-0x0000000000740000-0x0000000000767000-memory.dmp

Filesize
156KB

Download
memory/4548-142-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads