formbook | 930ce81bea6819c32ad02f82e331f62c1339dcc0df585dc5b7c9dc06165eb1e0

General

Target

yeni sipari? sorgulama.exe
Size

813KB
MD5

645876569da3612ca1ccef31d94c348d
SHA1

6af515a9cd19b313223e52d0ab20b4405b184820
SHA256

6d176caf6c21bdc47aa0ee2e6e42f37d2f4c4a810af40dd7343da25cfd306bd5
SHA512

d002461b4c0c87cfffdecde830b3bd1b319fff7866a0b15d07ed6e342f60f657f396a15a38e01c70216b9ea20f02f39797449f97ac3a80ed4421d091074b6b84

Score

10^/10

formbook kvsz persistence rat spyware stealer 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

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1520-137-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1520-139-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/4352-148-0x0000000000700000-0x000000000072E000-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:

help.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	help.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\ARSDLXNXAJK = "C:\\Program Files (x86)\\Ranhti6pp\\6ltdmpxo.exe"	help.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:

yeni sipari_ sorgulama.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	yeni sipari_ sorgulama.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 4 IoCs

Processes:

yeni sipari_ sorgulama.exeRegSvcs.exehelp.exe

description	pid	process	target process
PID 3900 set thread context of 1520	3900	yeni sipari_ sorgulama.exe	RegSvcs.exe
PID 1520 set thread context of 3120	1520	RegSvcs.exe	Explorer.EXE
PID 1520 set thread context of 3120	1520	RegSvcs.exe	Explorer.EXE
PID 4352 set thread context of 3120	4352	help.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

help.exe

description ioc process

File opened for modification C:\Program Files (x86)\Ranhti6pp\6ltdmpxo.exe help.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

3288 schtasks.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Ranhti6pp\6ltdmpxo.exe	help.exe

pid	process
3288	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

help.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	help.exe

Suspicious behavior: EnumeratesProcesses 43 IoCs

Processes:

yeni sipari_ sorgulama.exeRegSvcs.exehelp.exe

pid	process
3900	yeni sipari_ sorgulama.exe
3900	yeni sipari_ sorgulama.exe
3900	yeni sipari_ sorgulama.exe
3900	yeni sipari_ sorgulama.exe
3900	yeni sipari_ sorgulama.exe
3900	yeni sipari_ sorgulama.exe
3900	yeni sipari_ sorgulama.exe
1520	RegSvcs.exe
1520	RegSvcs.exe
1520	RegSvcs.exe
1520	RegSvcs.exe
1520	RegSvcs.exe
1520	RegSvcs.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3120 Explorer.EXE
Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

RegSvcs.exehelp.exe

pid process

1520 RegSvcs.exe
1520 RegSvcs.exe
1520 RegSvcs.exe
1520 RegSvcs.exe
4352 help.exe
4352 help.exe
4352 help.exe
4352 help.exe

pid	process
3120	Explorer.EXE

pid	process
1520	RegSvcs.exe
1520	RegSvcs.exe
1520	RegSvcs.exe
1520	RegSvcs.exe
4352	help.exe
4352	help.exe
4352	help.exe
4352	help.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

yeni sipari_ sorgulama.exeRegSvcs.exehelp.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3900	yeni sipari_ sorgulama.exe
Token: SeDebugPrivilege	1520	RegSvcs.exe
Token: SeDebugPrivilege	4352	help.exe
Token: SeShutdownPrivilege	3120	Explorer.EXE
Token: SeCreatePagefilePrivilege	3120	Explorer.EXE
Token: SeShutdownPrivilege	3120	Explorer.EXE
Token: SeCreatePagefilePrivilege	3120	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

yeni sipari_ sorgulama.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 3900 wrote to memory of 3288	3900	yeni sipari_ sorgulama.exe	schtasks.exe
PID 3900 wrote to memory of 3288	3900	yeni sipari_ sorgulama.exe	schtasks.exe
PID 3900 wrote to memory of 3288	3900	yeni sipari_ sorgulama.exe	schtasks.exe
PID 3900 wrote to memory of 1520	3900	yeni sipari_ sorgulama.exe	RegSvcs.exe
PID 3900 wrote to memory of 1520	3900	yeni sipari_ sorgulama.exe	RegSvcs.exe
PID 3900 wrote to memory of 1520	3900	yeni sipari_ sorgulama.exe	RegSvcs.exe
PID 3900 wrote to memory of 1520	3900	yeni sipari_ sorgulama.exe	RegSvcs.exe
PID 3900 wrote to memory of 1520	3900	yeni sipari_ sorgulama.exe	RegSvcs.exe
PID 3900 wrote to memory of 1520	3900	yeni sipari_ sorgulama.exe	RegSvcs.exe
PID 3120 wrote to memory of 4352	3120	Explorer.EXE	help.exe
PID 3120 wrote to memory of 4352	3120	Explorer.EXE	help.exe
PID 3120 wrote to memory of 4352	3120	Explorer.EXE	help.exe
PID 4352 wrote to memory of 4564	4352	help.exe	cmd.exe
PID 4352 wrote to memory of 4564	4352	help.exe	cmd.exe
PID 4352 wrote to memory of 4564	4352	help.exe	cmd.exe
PID 4352 wrote to memory of 2296	4352	help.exe	cmd.exe
PID 4352 wrote to memory of 2296	4352	help.exe	cmd.exe
PID 4352 wrote to memory of 2296	4352	help.exe	cmd.exe
PID 4352 wrote to memory of 3304	4352	help.exe	Firefox.exe
PID 4352 wrote to memory of 3304	4352	help.exe	Firefox.exe
PID 4352 wrote to memory of 3304	4352	help.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3120

C:\Users\Admin\AppData\Local\Temp\yeni sipari_ sorgulama.exe
"C:\Users\Admin\AppData\Local\Temp\yeni sipari_ sorgulama.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3900

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RNNIOe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8F40.tmp"
3⤵
- Creates scheduled task(s)
PID:3288

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:1520

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.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:4352

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:4564

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:2296

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:3304

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\tmp8F40.tmp
Filesize
1KB

MD5
c6fdd563853a94c16f3fae6866f8451b

SHA1
03997c2c34571ca1e26263eb8f0a7f8d0429a0cb

SHA256
a1e6021501e3a7bda24c08d3aeea0051e5795b34a9ca1cb97c8783767642d5e8

SHA512
d307c6e72ba2d55fe09f288631832f5816ef701fd6ab14cc859f22d17b3cbe8756203b71af6faf928bad5ab92e0036e1c71b2754df729046d7dc4133d8671696

Download Submit
memory/1520-141-0x0000000000F00000-0x000000000124A000-memory.dmp

Filesize
3.3MB

Download
memory/1520-142-0x0000000001410000-0x0000000001424000-memory.dmp

Filesize
80KB

Download
memory/1520-144-0x0000000002CC0000-0x0000000002CD4000-memory.dmp

Filesize
80KB

Download
memory/1520-136-0x0000000000000000-mapping.dmp

Download
memory/1520-137-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1520-139-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2296-153-0x0000000000000000-mapping.dmp

Download
memory/3120-145-0x0000000007A20000-0x0000000007AE6000-memory.dmp

Filesize
792KB

Download
memory/3120-152-0x0000000008A70000-0x0000000008B1F000-memory.dmp

Filesize
700KB

Download
memory/3120-140-0x0000000003180000-0x00000000032E6000-memory.dmp

Filesize
1.4MB

Download
memory/3288-134-0x0000000000000000-mapping.dmp

Download
memory/3900-132-0x0000000005060000-0x00000000050F2000-memory.dmp

Filesize
584KB

Download
memory/3900-133-0x00000000051A0000-0x000000000523C000-memory.dmp

Filesize
624KB

Download
memory/3900-131-0x0000000005470000-0x0000000005A14000-memory.dmp

Filesize
5.6MB

Download
memory/3900-130-0x0000000000230000-0x0000000000302000-memory.dmp

Filesize
840KB

Download
memory/4352-148-0x0000000000700000-0x000000000072E000-memory.dmp

Filesize
184KB

Download
memory/4352-151-0x0000000000CB0000-0x0000000000D43000-memory.dmp

Filesize
588KB

Download
memory/4352-149-0x0000000000E60000-0x00000000011AA000-memory.dmp

Filesize
3.3MB

Download
memory/4352-147-0x0000000000CA0000-0x0000000000CA7000-memory.dmp

Filesize
28KB

Download
memory/4352-146-0x0000000000000000-mapping.dmp

Download
memory/4564-150-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads