formbook | 28e0affe70d48a6c6fe89b76dc56c59f93521a4b606dbb6fff60a84d382e9ceb

General

Target

kayx.exe
Size

563KB
MD5

129e1d37b93430b4bd894b16c53cd6bc
SHA1

9ce52826f988b0702ad49e9b1da94f8e3d044c9b
SHA256

28e0affe70d48a6c6fe89b76dc56c59f93521a4b606dbb6fff60a84d382e9ceb
SHA512

9639f5982cc0f2a56c8806a56309aa2daf6960d3a1c9bbd0e478198efd51ed425cedbd8f82a6fbe53cb80914f0b3d1ba8f6fd2c9b319b64452dae4937858edd5

Score

10^/10

formbook agilenet rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.semenovdmitriik.club/bwk/

Decoy

alexrabus.com

education618.com

nelivo.com

gosanispire.com

cdaboozecruise.com

lovenfys.com

wellsleyarts.com

madcord.net

aadiventura.com

prideglobalholdings.com

tu-aviso.com

rjroof.com

upthehilldogwalking.com

ultraletefit.com

opinetree.com

retiredalsolovingit.com

oculensweb.com

laurartproductions.com

uncontenido.com

elisabethchin.com

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/864-68-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/864-69-0x000000000041EB50-mapping.dmp	formbook
behavioral1/memory/616-80-0x00000000000D0000-0x00000000000FE000-memory.dmp	formbook

Executes dropped EXE 1 IoCs

Processes:

AddInProcess32.exe

pid process

864 AddInProcess32.exe
Loads dropped DLL 1 IoCs

Processes:

kayx.exe

pid process

788 kayx.exe

pid	process
864	AddInProcess32.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral1/memory/788-63-0x0000000000670000-0x0000000000691000-memory.dmp	agile_net

Suspicious use of SetThreadContext 3 IoCs

Processes:

kayx.exeAddInProcess32.exeipconfig.exe

description	pid	process	target process
PID 788 set thread context of 864	788	kayx.exe	AddInProcess32.exe
PID 864 set thread context of 1204	864	AddInProcess32.exe	Explorer.EXE
PID 616 set thread context of 1204	616	ipconfig.exe	Explorer.EXE

Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

ipconfig.exe

pid process

616 ipconfig.exe

pid	process
616	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

kayx.exeAddInProcess32.exeipconfig.exe

pid	process
788	kayx.exe
788	kayx.exe
864	AddInProcess32.exe
864	AddInProcess32.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe
616	ipconfig.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

AddInProcess32.exeipconfig.exe

pid process

864 AddInProcess32.exe
864 AddInProcess32.exe
864 AddInProcess32.exe
616 ipconfig.exe
616 ipconfig.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

kayx.exeAddInProcess32.exeipconfig.exe

description pid process

Token: SeDebugPrivilege 788 kayx.exe
Token: SeDebugPrivilege 864 AddInProcess32.exe
Token: SeDebugPrivilege 616 ipconfig.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
1204 Explorer.EXE
1204 Explorer.EXE
1204 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
1204 Explorer.EXE
1204 Explorer.EXE
1204 Explorer.EXE

pid	process
864	AddInProcess32.exe
864	AddInProcess32.exe
864	AddInProcess32.exe
616	ipconfig.exe
616	ipconfig.exe

description	pid	process
Token: SeDebugPrivilege	788	kayx.exe
Token: SeDebugPrivilege	864	AddInProcess32.exe
Token: SeDebugPrivilege	616	ipconfig.exe

pid	process
1204	Explorer.EXE
1204	Explorer.EXE
1204	Explorer.EXE
1204	Explorer.EXE

pid	process
1204	Explorer.EXE
1204	Explorer.EXE
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

kayx.exeExplorer.EXEipconfig.exe

description	pid	process	target process
PID 788 wrote to memory of 864	788	kayx.exe	AddInProcess32.exe
PID 788 wrote to memory of 864	788	kayx.exe	AddInProcess32.exe
PID 788 wrote to memory of 864	788	kayx.exe	AddInProcess32.exe
PID 788 wrote to memory of 864	788	kayx.exe	AddInProcess32.exe
PID 788 wrote to memory of 864	788	kayx.exe	AddInProcess32.exe
PID 788 wrote to memory of 864	788	kayx.exe	AddInProcess32.exe
PID 788 wrote to memory of 864	788	kayx.exe	AddInProcess32.exe
PID 1204 wrote to memory of 616	1204	Explorer.EXE	ipconfig.exe
PID 1204 wrote to memory of 616	1204	Explorer.EXE	ipconfig.exe
PID 1204 wrote to memory of 616	1204	Explorer.EXE	ipconfig.exe
PID 1204 wrote to memory of 616	1204	Explorer.EXE	ipconfig.exe
PID 616 wrote to memory of 1784	616	ipconfig.exe	cmd.exe
PID 616 wrote to memory of 1784	616	ipconfig.exe	cmd.exe
PID 616 wrote to memory of 1784	616	ipconfig.exe	cmd.exe
PID 616 wrote to memory of 1784	616	ipconfig.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:1204

C:\Users\Admin\AppData\Local\Temp\kayx.exe
"C:\Users\Admin\AppData\Local\Temp\kayx.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:788

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:864

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\SysWOW64\ipconfig.exe"
2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:616

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
3⤵
PID:1784

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

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

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

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memory/616-82-0x00000000004B0000-0x0000000000543000-memory.dmp

Filesize
588KB

Download
memory/616-81-0x0000000002050000-0x0000000002353000-memory.dmp

Filesize
3.0MB

Download
memory/616-78-0x0000000000920000-0x000000000092A000-memory.dmp

Filesize
40KB

Download
memory/616-80-0x00000000000D0000-0x00000000000FE000-memory.dmp

Filesize
184KB

Download
memory/616-76-0x0000000075551000-0x0000000075553000-memory.dmp

Filesize
8KB

Download
memory/616-75-0x0000000000000000-mapping.dmp

Download
memory/788-66-0x00000000009C0000-0x00000000009C1000-memory.dmp

Filesize
4KB

Download
memory/788-59-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/788-65-0x00000000007A0000-0x00000000007AB000-memory.dmp

Filesize
44KB

Download
memory/788-64-0x0000000004CF1000-0x0000000004CF2000-memory.dmp

Filesize
4KB

Download
memory/788-63-0x0000000000670000-0x0000000000691000-memory.dmp

Filesize
132KB

Download
memory/788-61-0x0000000004CF0000-0x0000000004CF1000-memory.dmp

Filesize
4KB

Download
memory/864-73-0x0000000000200000-0x0000000000214000-memory.dmp

Filesize
80KB

Download
memory/864-72-0x0000000000800000-0x0000000000B03000-memory.dmp

Filesize
3.0MB

Download
memory/864-69-0x000000000041EB50-mapping.dmp

Download
memory/864-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1204-74-0x0000000007C30000-0x0000000007D93000-memory.dmp

Filesize
1.4MB

Download
memory/1204-83-0x0000000005F00000-0x0000000006010000-memory.dmp

Filesize
1.1MB

Download
memory/1784-79-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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