formbook | 06078629129c4bc1abb214bbbe1bfadca65b618ac9f6f93fc3b22d0a37740f5b

General

Target

ATR1.exe
Size

574KB
MD5

020d56ce7d0a45a896c811550e05ce9d
SHA1

814c8ddbc50e9e158e63bdd745d683dcb636c2a6
SHA256

06078629129c4bc1abb214bbbe1bfadca65b618ac9f6f93fc3b22d0a37740f5b
SHA512

ce565aafb7593d5aa8393a46d27823a90c26e923a15a77252e0be1dbae4845254aa83f35ea44c18964490a7769431aeecffb80052e1f1b5af4b44d8028122dff

Score

10^/10

rat trojan spyware stealer formbook evasion

Malware Config

Signatures

Suspicious use of SetThreadContext 4 IoCs

Processes:

ATR1.exeATR1.exeipconfig.exe

description	pid	process	target process
PID 1088 set thread context of 596	1088	ATR1.exe	ATR1.exe
PID 596 set thread context of 1300	596	ATR1.exe	Explorer.EXE
PID 596 set thread context of 1300	596	ATR1.exe	Explorer.EXE
PID 1612 set thread context of 1300	1612	ipconfig.exe	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

ATR1.exeipconfig.exe

pid process

596 ATR1.exe
596 ATR1.exe
596 ATR1.exe
596 ATR1.exe
1612 ipconfig.exe
1612 ipconfig.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1580 cmd.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1300 Explorer.EXE
1300 Explorer.EXE
1300 Explorer.EXE
1300 Explorer.EXE

pid	process
596	ATR1.exe
596	ATR1.exe
596	ATR1.exe
596	ATR1.exe
1612	ipconfig.exe
1612	ipconfig.exe

pid	process
1580	cmd.exe

pid	process
1300	Explorer.EXE
1300	Explorer.EXE
1300	Explorer.EXE
1300	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

ATR1.exeATR1.exeipconfig.exe

pid	process
1088	ATR1.exe
1088	ATR1.exe
1088	ATR1.exe
596	ATR1.exe
596	ATR1.exe
596	ATR1.exe
1612	ipconfig.exe
1612	ipconfig.exe
1612	ipconfig.exe
1612	ipconfig.exe
1612	ipconfig.exe
1612	ipconfig.exe
1612	ipconfig.exe
1612	ipconfig.exe
1612	ipconfig.exe
1612	ipconfig.exe
1612	ipconfig.exe
1612	ipconfig.exe
1612	ipconfig.exe
1612	ipconfig.exe

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1300 Explorer.EXE
1300 Explorer.EXE
1300 Explorer.EXE
1300 Explorer.EXE
Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

pid	process
1300	Explorer.EXE
1300	Explorer.EXE
1300	Explorer.EXE
1300	Explorer.EXE

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

ATR1.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	ATR1.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	ATR1.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

ATR1.exeATR1.exeipconfig.exe

description pid process

Token: SeDebugPrivilege 1088 ATR1.exe
Token: SeDebugPrivilege 596 ATR1.exe
Token: SeDebugPrivilege 1612 ipconfig.exe

description	pid	process
Token: SeDebugPrivilege	1088	ATR1.exe
Token: SeDebugPrivilege	596	ATR1.exe
Token: SeDebugPrivilege	1612	ipconfig.exe

Formbook Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/596-2-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/596-2-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/596-3-0x000000000041E2F0-mapping.dmp	formbook
behavioral1/memory/1612-5-0x0000000000000000-mapping.dmp	formbook

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

ATR1.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ATR1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ATR1.exe

Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

ipconfig.exe

pid process

1612 ipconfig.exe

pid	process
1612	ipconfig.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

ATR1.exeATR1.exeipconfig.exe

description	pid	process	target process
PID 1088 wrote to memory of 596	1088	ATR1.exe	ATR1.exe
PID 1088 wrote to memory of 596	1088	ATR1.exe	ATR1.exe
PID 1088 wrote to memory of 596	1088	ATR1.exe	ATR1.exe
PID 1088 wrote to memory of 596	1088	ATR1.exe	ATR1.exe
PID 1088 wrote to memory of 596	1088	ATR1.exe	ATR1.exe
PID 1088 wrote to memory of 596	1088	ATR1.exe	ATR1.exe
PID 1088 wrote to memory of 596	1088	ATR1.exe	ATR1.exe
PID 596 wrote to memory of 1612	596	ATR1.exe	ipconfig.exe
PID 596 wrote to memory of 1612	596	ATR1.exe	ipconfig.exe
PID 596 wrote to memory of 1612	596	ATR1.exe	ipconfig.exe
PID 596 wrote to memory of 1612	596	ATR1.exe	ipconfig.exe
PID 1612 wrote to memory of 1580	1612	ipconfig.exe	cmd.exe
PID 1612 wrote to memory of 1580	1612	ipconfig.exe	cmd.exe
PID 1612 wrote to memory of 1580	1612	ipconfig.exe	cmd.exe
PID 1612 wrote to memory of 1580	1612	ipconfig.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1300

C:\Users\Admin\AppData\Local\Temp\ATR1.exe
"C:\Users\Admin\AppData\Local\Temp\ATR1.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Maps connected drives based on registry
- Suspicious use of AdjustPrivilegeToken
- Checks BIOS information in registry
- Suspicious use of WriteProcessMemory
PID:1088

C:\Users\Admin\AppData\Local\Temp\ATR1.exe
"C:\Users\Admin\AppData\Local\Temp\ATR1.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:596

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\SysWOW64\ipconfig.exe"
4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Gathers network information
- Suspicious use of WriteProcessMemory
PID:1612

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\ATR1.exe"
5⤵
- Deletes itself
PID:1580

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

Peripheral Device Discovery

1

T1120

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/596-2-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/596-3-0x000000000041E2F0-mapping.dmp

Download
memory/1088-1-0x0000000000000000-0x0000000000000000-disk.dmp

Download
memory/1300-4-0x0000000004B00000-0x0000000004C1D000-memory.dmp

Filesize
1.1MB

Download
memory/1300-9-0x00000000069E0000-0x0000000006AE4000-memory.dmp

Filesize
1.0MB

Download
memory/1580-7-0x0000000000000000-mapping.dmp

Download
memory/1612-5-0x0000000000000000-mapping.dmp

Download
memory/1612-6-0x00000000003B0000-0x00000000003BA000-memory.dmp

Filesize
40KB

Download
memory/1612-8-0x0000000003040000-0x0000000003149000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads