formbook | 37299afa1d46a1aa02b7b06a39d41d876f454047527e406e7cbcb659833de728

General

Target

UPDATED S.O.A..exe
Size

796KB
MD5

37abe07d477f8fd134cd1c4f7bde592d
SHA1

12f091feb8be7dc754ee73090c8bbcce5d82c4d3
SHA256

37299afa1d46a1aa02b7b06a39d41d876f454047527e406e7cbcb659833de728
SHA512

34ba619d7ebd7ffd77cad9445c05f5447a69e3984d2111f88829db3413427b41d68bb7464440ef2cf750830763a2cd088ef22e04bb68b1d2cf1a3782eaaacf03

Score

10^/10

persistence trojan spyware stealer formbook evasion

Malware Config

Signatures

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1108 set thread context of 1020	1108	UPDATED S.O.A..exe	24
PID 1020 set thread context of 1284	1020	RegSvcs.exe	20
PID 748 set thread context of 1284	748	chkdsk.exe	20

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Mvzd0q8\msmbiplx.exe	chkdsk.exe

Adds Run entry to policy start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\JPWDVZIX_JQ = "C:\\Program Files (x86)\\Mvzd0q8\\msmbiplx.exe"	chkdsk.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	chkdsk.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1108 wrote to memory of 1020	1108	UPDATED S.O.A..exe	24
PID 1108 wrote to memory of 1020	1108	UPDATED S.O.A..exe	24
PID 1108 wrote to memory of 1020	1108	UPDATED S.O.A..exe	24
PID 1108 wrote to memory of 1020	1108	UPDATED S.O.A..exe	24
PID 1108 wrote to memory of 1020	1108	UPDATED S.O.A..exe	24
PID 1108 wrote to memory of 1020	1108	UPDATED S.O.A..exe	24
PID 1108 wrote to memory of 1020	1108	UPDATED S.O.A..exe	24
PID 1108 wrote to memory of 1020	1108	UPDATED S.O.A..exe	24
PID 1108 wrote to memory of 1020	1108	UPDATED S.O.A..exe	24
PID 1108 wrote to memory of 1020	1108	UPDATED S.O.A..exe	24
PID 1284 wrote to memory of 748	1284	Explorer.EXE	25
PID 1284 wrote to memory of 748	1284	Explorer.EXE	25
PID 1284 wrote to memory of 748	1284	Explorer.EXE	25
PID 1284 wrote to memory of 748	1284	Explorer.EXE	25
PID 748 wrote to memory of 1072	748	chkdsk.exe	26
PID 748 wrote to memory of 1072	748	chkdsk.exe	26
PID 748 wrote to memory of 1072	748	chkdsk.exe	26
PID 748 wrote to memory of 1072	748	chkdsk.exe	26
PID 748 wrote to memory of 1628	748	chkdsk.exe	31
PID 748 wrote to memory of 1628	748	chkdsk.exe	31
PID 748 wrote to memory of 1628	748	chkdsk.exe	31
PID 748 wrote to memory of 1628	748	chkdsk.exe	31
PID 748 wrote to memory of 1628	748	chkdsk.exe	31

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
1108	UPDATED S.O.A..exe
1020	RegSvcs.exe
1020	RegSvcs.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1020	RegSvcs.exe
1020	RegSvcs.exe
1020	RegSvcs.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe
748	chkdsk.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1131729243-447456001-3632642222-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1108	UPDATED S.O.A..exe
Token: SeDebugPrivilege	1020	RegSvcs.exe
Token: SeDebugPrivilege	748	chkdsk.exe
Token: SeShutdownPrivilege	1284	Explorer.EXE

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

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
- Suspicious use of SendNotifyMessage
- Suspicious use of AdjustPrivilegeToken
- Checks whether UAC is enabled
PID:1284
- C:\Users\Admin\AppData\Local\Temp\UPDATED S.O.A..exe
  "C:\Users\Admin\AppData\Local\Temp\UPDATED S.O.A..exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1108
- - 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:1020
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Enumerates system info in registry
  - Drops file in Program Files directory
  - Adds Run entry to policy start application
  - Suspicious use of WriteProcessMemory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Modifies Internet Explorer settings
  - System policy modification
  - Suspicious use of AdjustPrivilegeToken
  PID:748
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:1072
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1628

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

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

Command and Control

Exfiltration

Impact

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Downloads

memory/748-5-0x00000000002E0000-0x00000000002E7000-memory.dmp

Filesize
28KB

Download
memory/748-7-0x0000000001FA0000-0x0000000002089000-memory.dmp

Filesize
932KB

Download
memory/748-8-0x0000000075DC0000-0x0000000075DCC000-memory.dmp

Filesize
48KB

Download
memory/748-9-0x00000000754C0000-0x00000000755DD000-memory.dmp

Filesize
1.1MB

Download
memory/748-10-0x0000000003A40000-0x0000000003B8E000-memory.dmp

Filesize
1.3MB

Download
memory/1020-2-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1628-12-0x000000013FC60000-0x000000013FCF3000-memory.dmp

Filesize
588KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads