formbook | 4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348

General

Target

4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.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
behavioral1/memory/2572-129-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2572-130-0x000000000041F1A0-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:

4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.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:

4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe

description	pid	process	target process
PID 1684 set thread context of 2572	1684	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.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

2844 schtasks.exe

pid	process
2844	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe

pid	process
1684	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe
2572	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe
2572	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe

description pid process

Token: SeDebugPrivilege 1684 4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe

description	pid	process
Token: SeDebugPrivilege	1684	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe

description	pid	process	target process
PID 1684 wrote to memory of 2844	1684	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe	schtasks.exe
PID 1684 wrote to memory of 2844	1684	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe	schtasks.exe
PID 1684 wrote to memory of 2844	1684	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe	schtasks.exe
PID 1684 wrote to memory of 2572	1684	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe
PID 1684 wrote to memory of 2572	1684	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe
PID 1684 wrote to memory of 2572	1684	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe
PID 1684 wrote to memory of 2572	1684	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe
PID 1684 wrote to memory of 2572	1684	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe
PID 1684 wrote to memory of 2572	1684	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe	4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe

C:\Users\Admin\AppData\Local\Temp\4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe
"C:\Users\Admin\AppData\Local\Temp\4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.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:1684

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HhpQDpq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4031.tmp"
2⤵
- Creates scheduled task(s)
PID:2844

C:\Users\Admin\AppData\Local\Temp\4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:2572

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\tmp4031.tmp
MD5
82633e05ca2ccae6cfa78db31badae6a

SHA1
eab45d9c58a29ccadd26f1075ce23007510aab01

SHA256
401550a68ce1e0786e35f8083e3d2c51113c77320855bad3a26f9c1b67667040

SHA512
ff542547e5a208155fecb9f745117d0437ebe06392e313a0a63d04f15fda80a3c5c9dbe7c397d750574f2dc893ef36055804b58714a16ca762b563eb8c3a2324

Download Submit
memory/1684-120-0x0000000005270000-0x0000000005271000-memory.dmp

Filesize
4KB

Download
memory/1684-125-0x0000000009E80000-0x0000000009EB1000-memory.dmp

Filesize
196KB

Download
memory/1684-119-0x0000000005310000-0x0000000005311000-memory.dmp

Filesize
4KB

Download
memory/1684-115-0x0000000000900000-0x0000000000901000-memory.dmp

Filesize
4KB

Download
memory/1684-121-0x0000000005520000-0x0000000005521000-memory.dmp

Filesize
4KB

Download
memory/1684-122-0x0000000005270000-0x000000000576E000-memory.dmp

Filesize
5.0MB

Download
memory/1684-118-0x0000000005770000-0x0000000005771000-memory.dmp

Filesize
4KB

Download
memory/1684-124-0x0000000008DF0000-0x0000000008E74000-memory.dmp

Filesize
528KB

Download
memory/1684-123-0x0000000002A80000-0x0000000002A8E000-memory.dmp

Filesize
56KB

Download
memory/1684-126-0x0000000009F30000-0x0000000009F31000-memory.dmp

Filesize
4KB

Download
memory/1684-117-0x00000000051D0000-0x00000000051D1000-memory.dmp

Filesize
4KB

Download
memory/2572-129-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2572-130-0x000000000041F1A0-mapping.dmp

Download
memory/2572-131-0x0000000000F20000-0x0000000001240000-memory.dmp

Filesize
3.1MB

Download
memory/2844-127-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads