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/1108-69-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1108-70-0x000000000041F1A0-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 320 set thread context of 1108 320 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

824 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

7f44706f1c5ed5d723262bfa03b5500e.exe7f44706f1c5ed5d723262bfa03b5500e.exe

pid process

320 7f44706f1c5ed5d723262bfa03b5500e.exe
320 7f44706f1c5ed5d723262bfa03b5500e.exe
1108 7f44706f1c5ed5d723262bfa03b5500e.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

7f44706f1c5ed5d723262bfa03b5500e.exe

description pid process

Token: SeDebugPrivilege 320 7f44706f1c5ed5d723262bfa03b5500e.exe

description	pid	process	target process
PID 320 set thread context of 1108	320	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe

pid	process
824	schtasks.exe

pid	process
320	7f44706f1c5ed5d723262bfa03b5500e.exe
320	7f44706f1c5ed5d723262bfa03b5500e.exe
1108	7f44706f1c5ed5d723262bfa03b5500e.exe

description	pid	process
Token: SeDebugPrivilege	320	7f44706f1c5ed5d723262bfa03b5500e.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

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:320

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NUBPFhaQFiQqDs" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC14C.tmp"
2⤵
- Creates scheduled task(s)
PID:824

C:\Users\Admin\AppData\Local\Temp\7f44706f1c5ed5d723262bfa03b5500e.exe
"{path}"
2⤵
PID:1576

C:\Users\Admin\AppData\Local\Temp\7f44706f1c5ed5d723262bfa03b5500e.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:1108

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\tmpC14C.tmp
MD5
e73d9e18ea06c866b5c1fe8e824b2aac

SHA1
90e2d07bf9676cf5ff2bcdc703162fd7cb34a87a

SHA256
a7575cd5144dbfb313195a38594b643054d2c6a2e80414ebb6dbb8d3683f00b8

SHA512
b7b7f7c3cfde19b28cee28f2f0437c3dac9a1c48576a51f5e09c12097c35acdd11c0cfc198911340529b5ef8457febb0036c949a63bbb582caa7110d1412e4c1

Download Submit
memory/320-59-0x0000000001190000-0x0000000001191000-memory.dmp

Filesize
4KB

Download
memory/320-61-0x0000000001090000-0x0000000001091000-memory.dmp

Filesize
4KB

Download
memory/320-62-0x0000000000300000-0x000000000030E000-memory.dmp

Filesize
56KB

Download
memory/320-63-0x0000000005480000-0x0000000005500000-memory.dmp

Filesize
512KB

Download
memory/320-64-0x0000000000500000-0x0000000000531000-memory.dmp

Filesize
196KB

Download
memory/824-65-0x0000000000000000-mapping.dmp

Download
memory/1108-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1108-68-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1108-69-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1108-70-0x000000000041F1A0-mapping.dmp

Download
memory/1108-71-0x0000000000840000-0x0000000000B43000-memory.dmp

Filesize
3.0MB

Download

description	pid	process	target process
PID 320 wrote to memory of 824	320	7f44706f1c5ed5d723262bfa03b5500e.exe	schtasks.exe
PID 320 wrote to memory of 824	320	7f44706f1c5ed5d723262bfa03b5500e.exe	schtasks.exe
PID 320 wrote to memory of 824	320	7f44706f1c5ed5d723262bfa03b5500e.exe	schtasks.exe
PID 320 wrote to memory of 824	320	7f44706f1c5ed5d723262bfa03b5500e.exe	schtasks.exe
PID 320 wrote to memory of 1576	320	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 320 wrote to memory of 1576	320	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 320 wrote to memory of 1576	320	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 320 wrote to memory of 1576	320	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 320 wrote to memory of 1108	320	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 320 wrote to memory of 1108	320	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 320 wrote to memory of 1108	320	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 320 wrote to memory of 1108	320	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 320 wrote to memory of 1108	320	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 320 wrote to memory of 1108	320	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe
PID 320 wrote to memory of 1108	320	7f44706f1c5ed5d723262bfa03b5500e.exe	7f44706f1c5ed5d723262bfa03b5500e.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads