formbook | 5c73962e4c23d4c940fd4558963cd1d7f3fd58a06c8849cb074c2b52906ebdbc

General

Target

Item list.exe
Size

395KB
MD5

ea84edffa7e1f6a0ad5b4d98a889f57b
SHA1

2557d3052c0175f3f2346d2e93162b1553ddfa46
SHA256

4a2e8f13ad2ce022158574edb3ab566db4544ec1dcda648845b16bc754f4e321
SHA512

03d03e696ccd62b0d94b88d13811ef311ae6fe119a25f3dbad1f54a34c2f51737a06e3159234f3e50d1149f432f6d5fced979ae563e5c6a918b36f49fcb80a9a

Score

10^/10

formbook cza evasion rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cza

Decoy

truenorthentic.com

napgames.net

xn--fjq771n.com

wagnerprintconsult.net

spate.info

kids4thekingdom.com

ateconstruction.com

sort-regulation.com

vesselfulinflation.com

kalhanifi.com

veronews.info

worldinwinston.com

adornbymk.com

resources4u.online

pepinaerospace.com

tamaraarmendariz.com

xn--hck5aza9o8c.online

nomadicgastronomy.net

margaritasandmotherhood.com

vip51633.com

Signatures

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

Formbook Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1220-61-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/1220-62-0x000000000041E2E0-mapping.dmp	formbook
behavioral1/memory/1220-64-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/2020-72-0x0000000000090000-0x00000000000BD000-memory.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:

Item list.exe

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

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1880 cmd.exe

pid	process
1880	cmd.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:

Item list.exe

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

Suspicious use of SetThreadContext 3 IoCs

Processes:

Item list.exeItem list.execmstp.exe

description	pid	process	target process
PID 872 set thread context of 1220	872	Item list.exe	Item list.exe
PID 1220 set thread context of 1292	1220	Item list.exe	Explorer.EXE
PID 2020 set thread context of 1292	2020	cmstp.exe	Explorer.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

1728 schtasks.exe

pid	process
1728	schtasks.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

Item list.exeItem list.execmstp.exe

pid	process
872	Item list.exe
872	Item list.exe
1220	Item list.exe
1220	Item list.exe
2020	cmstp.exe
2020	cmstp.exe
2020	cmstp.exe
2020	cmstp.exe
2020	cmstp.exe
2020	cmstp.exe
2020	cmstp.exe
2020	cmstp.exe
2020	cmstp.exe
2020	cmstp.exe
2020	cmstp.exe
2020	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Item list.execmstp.exe

pid process

1220 Item list.exe
1220 Item list.exe
1220 Item list.exe
2020 cmstp.exe
2020 cmstp.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Item list.exeItem list.execmstp.exe

description pid process

Token: SeDebugPrivilege 872 Item list.exe
Token: SeDebugPrivilege 1220 Item list.exe
Token: SeDebugPrivilege 2020 cmstp.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1292 Explorer.EXE
1292 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1292 Explorer.EXE
1292 Explorer.EXE

pid	process
1220	Item list.exe
1220	Item list.exe
1220	Item list.exe
2020	cmstp.exe
2020	cmstp.exe

description	pid	process
Token: SeDebugPrivilege	872	Item list.exe
Token: SeDebugPrivilege	1220	Item list.exe
Token: SeDebugPrivilege	2020	cmstp.exe

pid	process
1292	Explorer.EXE
1292	Explorer.EXE

pid	process
1292	Explorer.EXE
1292	Explorer.EXE

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

Item list.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 872 wrote to memory of 1728	872	Item list.exe	schtasks.exe
PID 872 wrote to memory of 1728	872	Item list.exe	schtasks.exe
PID 872 wrote to memory of 1728	872	Item list.exe	schtasks.exe
PID 872 wrote to memory of 1728	872	Item list.exe	schtasks.exe
PID 872 wrote to memory of 1220	872	Item list.exe	Item list.exe
PID 872 wrote to memory of 1220	872	Item list.exe	Item list.exe
PID 872 wrote to memory of 1220	872	Item list.exe	Item list.exe
PID 872 wrote to memory of 1220	872	Item list.exe	Item list.exe
PID 872 wrote to memory of 1220	872	Item list.exe	Item list.exe
PID 872 wrote to memory of 1220	872	Item list.exe	Item list.exe
PID 872 wrote to memory of 1220	872	Item list.exe	Item list.exe
PID 1292 wrote to memory of 2020	1292	Explorer.EXE	cmstp.exe
PID 1292 wrote to memory of 2020	1292	Explorer.EXE	cmstp.exe
PID 1292 wrote to memory of 2020	1292	Explorer.EXE	cmstp.exe
PID 1292 wrote to memory of 2020	1292	Explorer.EXE	cmstp.exe
PID 1292 wrote to memory of 2020	1292	Explorer.EXE	cmstp.exe
PID 1292 wrote to memory of 2020	1292	Explorer.EXE	cmstp.exe
PID 1292 wrote to memory of 2020	1292	Explorer.EXE	cmstp.exe
PID 2020 wrote to memory of 1880	2020	cmstp.exe	cmd.exe
PID 2020 wrote to memory of 1880	2020	cmstp.exe	cmd.exe
PID 2020 wrote to memory of 1880	2020	cmstp.exe	cmd.exe
PID 2020 wrote to memory of 1880	2020	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1292

C:\Users\Admin\AppData\Local\Temp\Item list.exe
"C:\Users\Admin\AppData\Local\Temp\Item list.exe"
2⤵
- 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:872

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JSJqzikpnhwcVA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD06A.tmp"
3⤵
- Creates scheduled task(s)
PID:1728

C:\Users\Admin\AppData\Local\Temp\Item list.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1220

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Item list.exe"
3⤵
- Deletes itself
PID:1880

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\tmpD06A.tmp
Filesize
1KB

MD5
0903e76a76b66538bce73b773a604f37

SHA1
ba96181acbaa2f54ba0d51abf157b3ae377d8ac6

SHA256
88743b71b3ff9f887944d36745f983299a35f6527ad6cc3ea5431c0111e5ac0f

SHA512
274d52a37a2c8fdd93df6d579d65f9eeb255fe2fbf5c6e64249a3c0ec365b9f2e7b9f8fa2321c0e92d05415d2d873e53da882965b79ccd25ffdabc08c9fe76fc

Download Submit
memory/872-55-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/872-54-0x0000000076721000-0x0000000076723000-memory.dmp

Filesize
8KB

Download
memory/1220-64-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1220-65-0x00000000009E0000-0x0000000000CE3000-memory.dmp

Filesize
3.0MB

Download
memory/1220-58-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1220-61-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1220-62-0x000000000041E2E0-mapping.dmp

Download
memory/1220-59-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1220-66-0x00000000001F0000-0x0000000000204000-memory.dmp

Filesize
80KB

Download
memory/1292-67-0x00000000061B0000-0x00000000062F2000-memory.dmp

Filesize
1.3MB

Download
memory/1292-75-0x00000000041E0000-0x000000000428C000-memory.dmp

Filesize
688KB

Download
memory/1728-56-0x0000000000000000-mapping.dmp

Download
memory/1880-70-0x0000000000000000-mapping.dmp

Download
memory/2020-68-0x0000000000000000-mapping.dmp

Download
memory/2020-71-0x00000000004D0000-0x00000000004E8000-memory.dmp

Filesize
96KB

Download
memory/2020-72-0x0000000000090000-0x00000000000BD000-memory.dmp

Filesize
180KB

Download
memory/2020-73-0x0000000001F10000-0x0000000002213000-memory.dmp

Filesize
3.0MB

Download
memory/2020-74-0x0000000001C40000-0x0000000001CD3000-memory.dmp

Filesize
588KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads