formbook | 6f8594f486bb2feba0aac43986145d67e30a9280ae4a6a06ca1175d83099d286

General

Target

orden de compra.exe
Size

380KB
MD5

2a30abd4d6db32bfc49a069c56ceb45c
SHA1

dc1411169ccfac189b4370ce8342779051a65753
SHA256

2f9d83d844287396dcaf52b5c15c1dacc92bc4ae2e2777d24c8d09465037ace3
SHA512

fa5110812d55c02e597b4ec890b6f40bcb23e66ecb79189f4d0e461cb87c40f4fb3a36cf6f3edf47b9c4ab9b784702751338399a5cfe14e9bd31ba3b8917403f

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

Formbook Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/5092-138-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/4284-146-0x0000000000E00000-0x0000000000E2E000-memory.dmp	formbook

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:

orden de compra.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	orden de compra.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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

netsh.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	netsh.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\IBCHKNO88PA = "C:\\Program Files (x86)\\D2dp\\vzexbhurdtybc.exe"	netsh.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

orden de compra.exeRegSvcs.exenetsh.exe

description	pid	process	target process
PID 2816 set thread context of 5092	2816	orden de compra.exe	RegSvcs.exe
PID 5092 set thread context of 2040	5092	RegSvcs.exe	Explorer.EXE
PID 4284 set thread context of 2040	4284	netsh.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

netsh.exe

description ioc process

File opened for modification C:\Program Files (x86)\D2dp\vzexbhurdtybc.exe netsh.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

4812 schtasks.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\D2dp\vzexbhurdtybc.exe	netsh.exe

pid	process
4812	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

netsh.exe

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

Suspicious behavior: EnumeratesProcesses 34 IoCs

Processes:

orden de compra.exeRegSvcs.exenetsh.exe

pid	process
2816	orden de compra.exe
2816	orden de compra.exe
2816	orden de compra.exe
2816	orden de compra.exe
5092	RegSvcs.exe
5092	RegSvcs.exe
5092	RegSvcs.exe
5092	RegSvcs.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2040 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

RegSvcs.exenetsh.exe

pid process

5092 RegSvcs.exe
5092 RegSvcs.exe
5092 RegSvcs.exe
4284 netsh.exe
4284 netsh.exe
4284 netsh.exe
4284 netsh.exe

pid	process
2040	Explorer.EXE

pid	process
5092	RegSvcs.exe
5092	RegSvcs.exe
5092	RegSvcs.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe
4284	netsh.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

orden de compra.exeRegSvcs.exenetsh.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	2816	orden de compra.exe
Token: SeDebugPrivilege	5092	RegSvcs.exe
Token: SeDebugPrivilege	4284	netsh.exe
Token: SeShutdownPrivilege	2040	Explorer.EXE
Token: SeCreatePagefilePrivilege	2040	Explorer.EXE
Token: SeShutdownPrivilege	2040	Explorer.EXE
Token: SeCreatePagefilePrivilege	2040	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

orden de compra.exeExplorer.EXEnetsh.exe

description	pid	process	target process
PID 2816 wrote to memory of 4812	2816	orden de compra.exe	schtasks.exe
PID 2816 wrote to memory of 4812	2816	orden de compra.exe	schtasks.exe
PID 2816 wrote to memory of 4812	2816	orden de compra.exe	schtasks.exe
PID 2816 wrote to memory of 5092	2816	orden de compra.exe	RegSvcs.exe
PID 2816 wrote to memory of 5092	2816	orden de compra.exe	RegSvcs.exe
PID 2816 wrote to memory of 5092	2816	orden de compra.exe	RegSvcs.exe
PID 2816 wrote to memory of 5092	2816	orden de compra.exe	RegSvcs.exe
PID 2816 wrote to memory of 5092	2816	orden de compra.exe	RegSvcs.exe
PID 2816 wrote to memory of 5092	2816	orden de compra.exe	RegSvcs.exe
PID 2040 wrote to memory of 4284	2040	Explorer.EXE	netsh.exe
PID 2040 wrote to memory of 4284	2040	Explorer.EXE	netsh.exe
PID 2040 wrote to memory of 4284	2040	Explorer.EXE	netsh.exe
PID 4284 wrote to memory of 4828	4284	netsh.exe	cmd.exe
PID 4284 wrote to memory of 4828	4284	netsh.exe	cmd.exe
PID 4284 wrote to memory of 4828	4284	netsh.exe	cmd.exe
PID 4284 wrote to memory of 2240	4284	netsh.exe	cmd.exe
PID 4284 wrote to memory of 2240	4284	netsh.exe	cmd.exe
PID 4284 wrote to memory of 2240	4284	netsh.exe	cmd.exe
PID 4284 wrote to memory of 1900	4284	netsh.exe	Firefox.exe
PID 4284 wrote to memory of 1900	4284	netsh.exe	Firefox.exe
PID 4284 wrote to memory of 1900	4284	netsh.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2040

C:\Users\Admin\AppData\Local\Temp\orden de compra.exe
"C:\Users\Admin\AppData\Local\Temp\orden de compra.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2816

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\soPSGUbyne" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA4CB.tmp"
3⤵
- Creates scheduled task(s)
PID:4812

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:5092

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\SysWOW64\netsh.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:4284

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:4828

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:2240

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1900

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

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\Local\Temp\tmpA4CB.tmp
Filesize
1KB

MD5
4d6a7b199256a5e201e4daf430349652

SHA1
86e327d6751381b0bcd691c646e69a7bb393ca9f

SHA256
7a38eac5cbdfca1bbb042ea35da4e44ad71d5660ee9f462065eb83a6f28575ff

SHA512
92384f20c2b79331bf8a20894b4c145b282177e7136e58788d77c4516b2353eb8b8acc8383e102c890e602a6d87c9ff21746ab6a6ec46adbc44616a05808870a

Download Submit
memory/2040-149-0x00000000080B0000-0x00000000081CF000-memory.dmp

Filesize
1.1MB

Download
memory/2040-142-0x00000000083B0000-0x0000000008546000-memory.dmp

Filesize
1.6MB

Download
memory/2240-150-0x0000000000000000-mapping.dmp

Download
memory/2816-133-0x0000000005510000-0x000000000551A000-memory.dmp

Filesize
40KB

Download
memory/2816-134-0x0000000007A60000-0x0000000007AFC000-memory.dmp

Filesize
624KB

Download
memory/2816-130-0x0000000000A60000-0x0000000000AC6000-memory.dmp

Filesize
408KB

Download
memory/2816-132-0x0000000005470000-0x0000000005502000-memory.dmp

Filesize
584KB

Download
memory/2816-131-0x0000000005BA0000-0x0000000006144000-memory.dmp

Filesize
5.6MB

Download
memory/4284-145-0x0000000000850000-0x000000000086E000-memory.dmp

Filesize
120KB

Download
memory/4284-148-0x00000000014D0000-0x0000000001563000-memory.dmp

Filesize
588KB

Download
memory/4284-143-0x0000000000000000-mapping.dmp

Download
memory/4284-147-0x0000000001690000-0x00000000019DA000-memory.dmp

Filesize
3.3MB

Download
memory/4284-146-0x0000000000E00000-0x0000000000E2E000-memory.dmp

Filesize
184KB

Download
memory/4812-135-0x0000000000000000-mapping.dmp

Download
memory/4828-144-0x0000000000000000-mapping.dmp

Download
memory/5092-141-0x0000000001210000-0x0000000001224000-memory.dmp

Filesize
80KB

Download
memory/5092-140-0x00000000012B0000-0x00000000015FA000-memory.dmp

Filesize
3.3MB

Download
memory/5092-138-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5092-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads