formbook | 4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348

General

Target

f1d94fcc611053cd5162e70dc36fddfa.exe
Size

684KB
MD5

f1d94fcc611053cd5162e70dc36fddfa
SHA1

52ecf628c9fe25f2eedca8da56aa0785958e2638
SHA256

4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348
SHA512

f422f6332bb00eabec395ce4154c940632feafba67a2206cbfa5700114dee0bc38b394febe09aecdf4cae6f9bdfd232491c1f8a179813c52c763ce3b7bbd87f7

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
behavioral2/memory/2868-129-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2868-130-0x000000000041F1A0-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:

f1d94fcc611053cd5162e70dc36fddfa.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	f1d94fcc611053cd5162e70dc36fddfa.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f1d94fcc611053cd5162e70dc36fddfa.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:

f1d94fcc611053cd5162e70dc36fddfa.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	f1d94fcc611053cd5162e70dc36fddfa.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	f1d94fcc611053cd5162e70dc36fddfa.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

f1d94fcc611053cd5162e70dc36fddfa.exe

description pid process target process

PID 2056 set thread context of 2868 2056 f1d94fcc611053cd5162e70dc36fddfa.exe f1d94fcc611053cd5162e70dc36fddfa.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

3540 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

f1d94fcc611053cd5162e70dc36fddfa.exef1d94fcc611053cd5162e70dc36fddfa.exe

pid process

2056 f1d94fcc611053cd5162e70dc36fddfa.exe
2868 f1d94fcc611053cd5162e70dc36fddfa.exe
2868 f1d94fcc611053cd5162e70dc36fddfa.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

f1d94fcc611053cd5162e70dc36fddfa.exe

description pid process

Token: SeDebugPrivilege 2056 f1d94fcc611053cd5162e70dc36fddfa.exe

description	pid	process	target process
PID 2056 set thread context of 2868	2056	f1d94fcc611053cd5162e70dc36fddfa.exe	f1d94fcc611053cd5162e70dc36fddfa.exe

pid	process
3540	schtasks.exe

pid	process
2056	f1d94fcc611053cd5162e70dc36fddfa.exe
2868	f1d94fcc611053cd5162e70dc36fddfa.exe
2868	f1d94fcc611053cd5162e70dc36fddfa.exe

description	pid	process
Token: SeDebugPrivilege	2056	f1d94fcc611053cd5162e70dc36fddfa.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

f1d94fcc611053cd5162e70dc36fddfa.exe

description	pid	process	target process
PID 2056 wrote to memory of 3540	2056	f1d94fcc611053cd5162e70dc36fddfa.exe	schtasks.exe
PID 2056 wrote to memory of 3540	2056	f1d94fcc611053cd5162e70dc36fddfa.exe	schtasks.exe
PID 2056 wrote to memory of 3540	2056	f1d94fcc611053cd5162e70dc36fddfa.exe	schtasks.exe
PID 2056 wrote to memory of 2868	2056	f1d94fcc611053cd5162e70dc36fddfa.exe	f1d94fcc611053cd5162e70dc36fddfa.exe
PID 2056 wrote to memory of 2868	2056	f1d94fcc611053cd5162e70dc36fddfa.exe	f1d94fcc611053cd5162e70dc36fddfa.exe
PID 2056 wrote to memory of 2868	2056	f1d94fcc611053cd5162e70dc36fddfa.exe	f1d94fcc611053cd5162e70dc36fddfa.exe
PID 2056 wrote to memory of 2868	2056	f1d94fcc611053cd5162e70dc36fddfa.exe	f1d94fcc611053cd5162e70dc36fddfa.exe
PID 2056 wrote to memory of 2868	2056	f1d94fcc611053cd5162e70dc36fddfa.exe	f1d94fcc611053cd5162e70dc36fddfa.exe
PID 2056 wrote to memory of 2868	2056	f1d94fcc611053cd5162e70dc36fddfa.exe	f1d94fcc611053cd5162e70dc36fddfa.exe

C:\Users\Admin\AppData\Local\Temp\f1d94fcc611053cd5162e70dc36fddfa.exe
"C:\Users\Admin\AppData\Local\Temp\f1d94fcc611053cd5162e70dc36fddfa.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:2056

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HhpQDpq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6DE9.tmp"
2⤵
- Creates scheduled task(s)
PID:3540

C:\Users\Admin\AppData\Local\Temp\f1d94fcc611053cd5162e70dc36fddfa.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:2868

Network

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\tmp6DE9.tmp
MD5
0cb6cb4413c66945f8e7388cc9803168

SHA1
ee9c1d7ff865a9ba566125ab1b032ac3c09e5ca7

SHA256
641f8513823cb418920cf2471a94afa18c65e2ee4177153649590828e4f92a65

SHA512
0a01ebda5e39d88845f8bd045780422f147f03b839afce872eaa188883d6d1b4e7927f68d5ed008b0f9900340e3a1df231d8804eb5eb04d4e71acd90320b89af

Download Submit
memory/2056-120-0x0000000004EC0000-0x0000000004EC1000-memory.dmp

Filesize
4KB

Download
memory/2056-125-0x0000000009B60000-0x0000000009B91000-memory.dmp

Filesize
196KB

Download
memory/2056-119-0x0000000004FC0000-0x0000000004FC1000-memory.dmp

Filesize
4KB

Download
memory/2056-115-0x0000000000600000-0x0000000000601000-memory.dmp

Filesize
4KB

Download
memory/2056-121-0x00000000051F0000-0x00000000051F1000-memory.dmp

Filesize
4KB

Download
memory/2056-122-0x0000000004FC0000-0x00000000054BE000-memory.dmp

Filesize
5.0MB

Download
memory/2056-118-0x00000000054C0000-0x00000000054C1000-memory.dmp

Filesize
4KB

Download
memory/2056-124-0x0000000008AD0000-0x0000000008B54000-memory.dmp

Filesize
528KB

Download
memory/2056-123-0x00000000028B0000-0x00000000028BE000-memory.dmp

Filesize
56KB

Download
memory/2056-126-0x0000000009C30000-0x0000000009C31000-memory.dmp

Filesize
4KB

Download
memory/2056-117-0x0000000004F20000-0x0000000004F21000-memory.dmp

Filesize
4KB

Download
memory/2868-129-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2868-130-0x000000000041F1A0-mapping.dmp

Download
memory/2868-131-0x0000000000F70000-0x0000000001290000-memory.dmp

Filesize
3.1MB

Download
memory/3540-127-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads