formbook | 60cfee00408236ba105da652b956603ff2e51ebf2b80e75b900e452235873667

General

Target

55612335.exe
Size

253KB
MD5

a1a1a907effaaefa8b463e84234c1355
SHA1

421a063c16cc03629c5c380399bf9fc303f7c32c
SHA256

60cfee00408236ba105da652b956603ff2e51ebf2b80e75b900e452235873667
SHA512

6e6d51c8704c7e7d444dd30c70398012e6cd398db10478ff0f46f93b095209060c9b85831cc1787018d3536f58c2c9043df266b9b17ccb6fa363bbbb5a0125e7

Score

10^/10

formbook w6ya rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

w6ya

C2

http://www.truth-capturemachine.com/w6ya/

Decoy

auden-audio.com

zombieodyssey.com

hdpthg.com

toddtechnical.com

njsdgz.com

yieldfarm.world

guardsveirfynews.net

atmamandir.info

eskisehirtostcusu.online

arrozz.net

v99king.win

jaxonboxing.com

morganevans.net

syandeg.com

valleyofplants.com

corsosportorico.com

tak.support

blacktgpc.com

herdpetshop.com

iifkvhns.xyz

Signatures

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

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/860-56-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/860-57-0x000000000041F150-mapping.dmp	formbook
behavioral1/memory/1576-65-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

784 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

55612335.exe

pid process

960 55612335.exe

pid	process
784	cmd.exe

pid	process
960	55612335.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

55612335.exe55612335.exesvchost.exe

description	pid	process	target process
PID 960 set thread context of 860	960	55612335.exe	55612335.exe
PID 860 set thread context of 1204	860	55612335.exe	Explorer.EXE
PID 1576 set thread context of 1204	1576	svchost.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

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

55612335.exesvchost.exe

pid	process
860	55612335.exe
860	55612335.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe
1576	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

55612335.exesvchost.exe

pid process

860 55612335.exe
860 55612335.exe
860 55612335.exe
1576 svchost.exe
1576 svchost.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

55612335.exesvchost.exe

description pid process

Token: SeDebugPrivilege 860 55612335.exe
Token: SeDebugPrivilege 1576 svchost.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
1204 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
1204 Explorer.EXE

pid	process
1204	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	860	55612335.exe
Token: SeDebugPrivilege	1576	svchost.exe

pid	process
1204	Explorer.EXE
1204	Explorer.EXE

pid	process
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

55612335.exeExplorer.EXEsvchost.exe

description	pid	process	target process
PID 960 wrote to memory of 860	960	55612335.exe	55612335.exe
PID 960 wrote to memory of 860	960	55612335.exe	55612335.exe
PID 960 wrote to memory of 860	960	55612335.exe	55612335.exe
PID 960 wrote to memory of 860	960	55612335.exe	55612335.exe
PID 960 wrote to memory of 860	960	55612335.exe	55612335.exe
PID 960 wrote to memory of 860	960	55612335.exe	55612335.exe
PID 960 wrote to memory of 860	960	55612335.exe	55612335.exe
PID 1204 wrote to memory of 1576	1204	Explorer.EXE	svchost.exe
PID 1204 wrote to memory of 1576	1204	Explorer.EXE	svchost.exe
PID 1204 wrote to memory of 1576	1204	Explorer.EXE	svchost.exe
PID 1204 wrote to memory of 1576	1204	Explorer.EXE	svchost.exe
PID 1576 wrote to memory of 784	1576	svchost.exe	cmd.exe
PID 1576 wrote to memory of 784	1576	svchost.exe	cmd.exe
PID 1576 wrote to memory of 784	1576	svchost.exe	cmd.exe
PID 1576 wrote to memory of 784	1576	svchost.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1204

C:\Users\Admin\AppData\Local\Temp\55612335.exe
"C:\Users\Admin\AppData\Local\Temp\55612335.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:960

C:\Users\Admin\AppData\Local\Temp\55612335.exe
"C:\Users\Admin\AppData\Local\Temp\55612335.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:860

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\SysWOW64\svchost.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1576

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\55612335.exe"
3⤵
- Deletes itself
PID:784

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nso122B.tmp\dufumxrhk.dll
MD5
f463c9c4f74c0a99e248d5334ff30fad

SHA1
04fc43ed81620bb327f698620ca9af4c10072acf

SHA256
d3a0c36bc7b6acb4cd446e05aa7b7f54ddd5aa52208eec94c678c1c433b01aa5

SHA512
410e282c122a4b11eb3438639fa9ec319e7db4842cb29fed145e03d12defa90d713fc9e5c293a884a29fb3fcf07ffa4ac5640e3a3f2ad968f6eec62fcfd7daed

Download Submit
memory/784-63-0x0000000000000000-mapping.dmp

Download
memory/860-56-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/860-57-0x000000000041F150-mapping.dmp

Download
memory/860-59-0x00000000008E0000-0x0000000000BE3000-memory.dmp

Filesize
3.0MB

Download
memory/860-60-0x0000000000340000-0x0000000000354000-memory.dmp

Filesize
80KB

Download
memory/960-54-0x0000000076961000-0x0000000076963000-memory.dmp

Filesize
8KB

Download
memory/1204-61-0x0000000006180000-0x00000000062D6000-memory.dmp

Filesize
1.3MB

Download
memory/1204-68-0x0000000003F00000-0x0000000003F99000-memory.dmp

Filesize
612KB

Download
memory/1576-62-0x0000000000000000-mapping.dmp

Download
memory/1576-64-0x0000000000C90000-0x0000000000C98000-memory.dmp

Filesize
32KB

Download
memory/1576-66-0x00000000008D0000-0x0000000000BD3000-memory.dmp

Filesize
3.0MB

Download
memory/1576-65-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1576-67-0x0000000000600000-0x0000000000693000-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