formbook | 7903434967ec18733812c4bdd4acdff871bfff5ce40528442272cf230822dd10

General

Target

7f44706f1c5ed5d723262bfa03b5500e.exe
Size

724KB
MD5

7f44706f1c5ed5d723262bfa03b5500e
SHA1

2c8b87e78b625e5436a559e92ffffaf4d7d5f3f9
SHA256

7903434967ec18733812c4bdd4acdff871bfff5ce40528442272cf230822dd10
SHA512

ec067ee7a95adbb872fe5f38ada816db747e910401a3fba609c30f394a01262fb34e70e9f8af4be5fb7e6e728bcef327d968f24d2653baca6a067c5101e4d5d8

Score

10^/10

formbook hs3h evasion rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

hs3h

C2

http://www.alefisrael.com/hs3h/

Decoy

slairt.com

teresasellsflorida.com

resouthcarolina.com

npccfbf.com

hutshed.com

westatesmarking.com

rustmonkeys.com

kagawa-rentacar.com

easyvoip-system.com

admorinsulation.com

ericaleighjensen.com

zhonghaojiaju.net

apple-iphone.xyz

b0t.info

torgetmc.xyz

lawrencemargarse.com

6123655.com

macdonalds-delivery.com

cvpfl.com

ayudaparaturent.com

Signatures

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

Formbook Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1808-63-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1808-64-0x000000000041F1A0-mapping.dmp	formbook

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

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:

7f44706f1c5ed5d723262bfa03b5500e.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	7f44706f1c5ed5d723262bfa03b5500e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7f44706f1c5ed5d723262bfa03b5500e.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:

7f44706f1c5ed5d723262bfa03b5500e.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	7f44706f1c5ed5d723262bfa03b5500e.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	7f44706f1c5ed5d723262bfa03b5500e.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

7f44706f1c5ed5d723262bfa03b5500e.exe

description pid process target process

PID 1544 set thread context of 1808 1544 7f44706f1c5ed5d723262bfa03b5500e.exe 7f44706f1c5ed5d723262bfa03b5500e.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

640 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

7f44706f1c5ed5d723262bfa03b5500e.exe7f44706f1c5ed5d723262bfa03b5500e.exe

pid process

1544 7f44706f1c5ed5d723262bfa03b5500e.exe
1808 7f44706f1c5ed5d723262bfa03b5500e.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

7f44706f1c5ed5d723262bfa03b5500e.exe

description pid process

Token: SeDebugPrivilege 1544 7f44706f1c5ed5d723262bfa03b5500e.exe

description	pid	process	target process
PID 1544 set thread context of 1808	1544	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe

pid	process
640	schtasks.exe

pid	process
1544	7f44706f1c5ed5d723262bfa03b5500e.exe
1808	7f44706f1c5ed5d723262bfa03b5500e.exe

description	pid	process
Token: SeDebugPrivilege	1544	7f44706f1c5ed5d723262bfa03b5500e.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

7f44706f1c5ed5d723262bfa03b5500e.exe

description	pid	process	target process
PID 1544 wrote to memory of 640	1544	7f44706f1c5ed5d723262bfa03b5500e.exe	schtasks.exe
PID 1544 wrote to memory of 640	1544	7f44706f1c5ed5d723262bfa03b5500e.exe	schtasks.exe
PID 1544 wrote to memory of 640	1544	7f44706f1c5ed5d723262bfa03b5500e.exe	schtasks.exe
PID 1544 wrote to memory of 640	1544	7f44706f1c5ed5d723262bfa03b5500e.exe	schtasks.exe
PID 1544 wrote to memory of 1808	1544	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 1544 wrote to memory of 1808	1544	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 1544 wrote to memory of 1808	1544	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 1544 wrote to memory of 1808	1544	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 1544 wrote to memory of 1808	1544	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 1544 wrote to memory of 1808	1544	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 1544 wrote to memory of 1808	1544	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe

C:\Users\Admin\AppData\Local\Temp\7f44706f1c5ed5d723262bfa03b5500e.exe
"C:\Users\Admin\AppData\Local\Temp\7f44706f1c5ed5d723262bfa03b5500e.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1544

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NUBPFhaQFiQqDs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5216.tmp"
2⤵
- Creates scheduled task(s)
PID:640

C:\Users\Admin\AppData\Local\Temp\7f44706f1c5ed5d723262bfa03b5500e.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:1808

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5216.tmp
MD5
ae859b23951ce2d1e49655c55b3b852a

SHA1
014da2f0a47aa61c2e6c24835bae2aa9ed5568ea

SHA256
63b9aaf82b9d6d5b9202c9e44a72b9b135fecaaf78e7efd74b7e9aa699605144

SHA512
20c77c0a86c4ed329ce42fbae7e3abd97e54f2e2dec05d1219e2f33979f875aa9049f8d1c24e73be858173c5e48c4a9daee3d5e6c1010391f19b6699afdaec96

Download Submit
memory/640-59-0x0000000000000000-mapping.dmp

Download
memory/1544-53-0x00000000013E0000-0x00000000013E1000-memory.dmp

Filesize
4KB

Download
memory/1544-55-0x00000000049F0000-0x00000000049F1000-memory.dmp

Filesize
4KB

Download
memory/1544-56-0x0000000000300000-0x000000000030E000-memory.dmp

Filesize
56KB

Download
memory/1544-57-0x00000000055F0000-0x0000000005670000-memory.dmp

Filesize
512KB

Download
memory/1544-58-0x0000000000600000-0x0000000000631000-memory.dmp

Filesize
196KB

Download
memory/1808-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1808-62-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1808-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1808-64-0x000000000041F1A0-mapping.dmp

Download
memory/1808-65-0x0000000000860000-0x0000000000B63000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads