formbook | def5dbf8e48af782ccb741ff6a1e1357af8dcafb701089b7f2d1c0919ae79f05

General

Target

Requirement list.exe
Size

648KB
MD5

5dff100422e961e681af596f5307ba6d
SHA1

68735aa701b4be6df63b0fed0edec4800027836b
SHA256

def5dbf8e48af782ccb741ff6a1e1357af8dcafb701089b7f2d1c0919ae79f05
SHA512

07aab159926347c24b6513c7f34a6fd52804f144ca1ff549aea14105a6bcaea715d8258a684be5fb852e9f33f87b96b991503b826bdef77b1dd2de29ac892c95

Score

10^/10

spyware evasion trojan stealer formbook persistence

Malware Config

Signatures

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

Requirement list.exeRequirement list.exewscript.exe

pid	process
376	Requirement list.exe
1100	Requirement list.exe
1100	Requirement list.exe
1100	Requirement list.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Requirement list.exeExplorer.EXEwscript.exe

description	pid	process	target process
PID 376 wrote to memory of 1100	376	Requirement list.exe	Requirement list.exe
PID 376 wrote to memory of 1100	376	Requirement list.exe	Requirement list.exe
PID 376 wrote to memory of 1100	376	Requirement list.exe	Requirement list.exe
PID 376 wrote to memory of 1100	376	Requirement list.exe	Requirement list.exe
PID 1304 wrote to memory of 1064	1304	Explorer.EXE	wscript.exe
PID 1304 wrote to memory of 1064	1304	Explorer.EXE	wscript.exe
PID 1304 wrote to memory of 1064	1304	Explorer.EXE	wscript.exe
PID 1304 wrote to memory of 1064	1304	Explorer.EXE	wscript.exe
PID 1064 wrote to memory of 1852	1064	wscript.exe	cmd.exe
PID 1064 wrote to memory of 1852	1064	wscript.exe	cmd.exe
PID 1064 wrote to memory of 1852	1064	wscript.exe	cmd.exe
PID 1064 wrote to memory of 1852	1064	wscript.exe	cmd.exe
PID 1064 wrote to memory of 1332	1064	wscript.exe	Firefox.exe
PID 1064 wrote to memory of 1332	1064	wscript.exe	Firefox.exe
PID 1064 wrote to memory of 1332	1064	wscript.exe	Firefox.exe
PID 1064 wrote to memory of 1332	1064	wscript.exe	Firefox.exe
PID 1064 wrote to memory of 1332	1064	wscript.exe	Firefox.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1852 cmd.exe
Suspicious use of FindShellTrayWindow 5 IoCs

Processes:

Explorer.EXE

pid process

1304 Explorer.EXE
1304 Explorer.EXE
1304 Explorer.EXE
1304 Explorer.EXE
1304 Explorer.EXE
Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Drops file in Program Files directory 1 IoCs

Processes:

wscript.exe

description ioc process

File opened for modification C:\Program Files (x86)\Drfi0d4\helpgdvht.exe wscript.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Requirement list.exewscript.exe

description pid process

Token: SeDebugPrivilege 1100 Requirement list.exe
Token: SeDebugPrivilege 1064 wscript.exe
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1304 Explorer.EXE
1304 Explorer.EXE
1304 Explorer.EXE
1304 Explorer.EXE
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Explorer.EXE

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Explorer.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

pid	process
1852	cmd.exe

pid	process
1304	Explorer.EXE
1304	Explorer.EXE
1304	Explorer.EXE
1304	Explorer.EXE
1304	Explorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Drfi0d4\helpgdvht.exe	wscript.exe

description	pid	process
Token: SeDebugPrivilege	1100	Requirement list.exe
Token: SeDebugPrivilege	1064	wscript.exe

pid	process
1304	Explorer.EXE
1304	Explorer.EXE
1304	Explorer.EXE
1304	Explorer.EXE

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

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

Adds Run entry to policy 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\L4XX6TIX = "C:\\Program Files (x86)\\Drfi0d4\\helpgdvht.exe"	wscript.exe

Suspicious behavior: MapViewOfSection 9 IoCs

Processes:

Requirement list.exeRequirement list.exewscript.exe

pid	process
376	Requirement list.exe
1100	Requirement list.exe
1100	Requirement list.exe
1100	Requirement list.exe
1100	Requirement list.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe
1064	wscript.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

Requirement list.exeRequirement list.exewscript.exe

description	pid	process	target process
PID 376 set thread context of 1100	376	Requirement list.exe	Requirement list.exe
PID 1100 set thread context of 1304	1100	Requirement list.exe	Explorer.EXE
PID 1100 set thread context of 1304	1100	Requirement list.exe	Explorer.EXE
PID 1064 set thread context of 1304	1064	wscript.exe	Explorer.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

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-910373003-3952921535-3480519689-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wscript.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Checks whether UAC is enabled
PID:1304

C:\Users\Admin\AppData\Local\Temp\Requirement list.exe
"C:\Users\Admin\AppData\Local\Temp\Requirement list.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
PID:376

C:\Users\Admin\AppData\Local\Temp\Requirement list.exe
"C:\Users\Admin\AppData\Local\Temp\Requirement list.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
PID:1100

C:\Windows\SysWOW64\wscript.exe
"C:\Windows\SysWOW64\wscript.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- System policy modification
- Adds Run entry to policy start application
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
PID:1064

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Requirement list.exe"
3⤵
- Deletes itself
PID:1852

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1332

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\2MAB93A4\2MAlogim.jpeg

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C:\Users\Admin\AppData\Roaming\2MAB93A4\2MAlogrf.ini

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C:\Users\Admin\AppData\Roaming\2MAB93A4\2MAlogri.ini

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C:\Users\Admin\AppData\Roaming\2MAB93A4\2MAlogrv.ini

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memory/1064-4-0x0000000000760000-0x0000000000786000-memory.dmp

Filesize
152KB

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memory/1064-6-0x0000000001EB0000-0x0000000001FC4000-memory.dmp

Filesize
1.1MB

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memory/1064-7-0x0000000075C40000-0x0000000075C4C000-memory.dmp

Filesize
48KB

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memory/1064-8-0x0000000076560000-0x000000007667D000-memory.dmp

Filesize
1.1MB

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memory/1064-9-0x0000000004030000-0x0000000004124000-memory.dmp

Filesize
976KB

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memory/1064-3-0x0000000000000000-mapping.dmp

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memory/1100-0-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

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memory/1100-1-0x000000000041E2E0-mapping.dmp

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memory/1304-2-0x0000000006C60000-0x0000000006DFB000-memory.dmp

Filesize
1.6MB

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memory/1332-10-0x0000000000000000-mapping.dmp

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memory/1332-11-0x000000013FBF0000-0x000000013FC83000-memory.dmp

Filesize
588KB

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memory/1852-5-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads