formbook | 58b9ef070518321fd67fea27324eeee25b99318bd5c40bd34b2e33ffb4037d56

General

Target

PO PI.exe
Size

460KB
MD5

9a931b93992bd36af52ea345cef3af98
SHA1

dbe897227e9df2b0dc809068df011722d0bbf7a2
SHA256

8e9f882576a66be70ed5bc204584037087f3bd53d13498126153fb7514f7dd7a
SHA512

46eecbeae1e8d591f0b8f7a76bc260538f92b1b4cbd3b69b0fecc6a85c9d839c79e0dc7e047620b52bdc406c2346abd4ca8ba35b47fdb32082f407d470bf8f43

Score

10^/10

formbook wus evasion persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

wus

Decoy

generativecoaching.net

skillmosaic.com

practicalmaster.com

12aminmiami.com

instagramsupport.online

mainelse.net

qqysmr.com

wealthxd.com

videoadscreator.com

dltzscl.com

cotaforjulyans.com

forcend.com

shinjukufilm.com

bsq30.com

dragonsrose.net

loganbuys.com

wwwfitnessymusica.com

microbladingdublin.com

corporateiconic.com

sunshinegroupnyc.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1824-62-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/1824-63-0x000000000041E290-mapping.dmp	formbook
behavioral1/memory/1824-65-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/656-72-0x00000000000C0000-0x00000000000ED000-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:

PO PI.exe

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

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1612 cmd.exe

pid	process
1612	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

systray.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	systray.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\XX-DQXUH5L = "C:\\Program Files (x86)\\Qkx4dv4i\\mfcm2txn.exe"	systray.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:

PO PI.exe

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

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO PI.exePO PI.exesystray.exe

description	pid	process	target process
PID 1836 set thread context of 1824	1836	PO PI.exe	PO PI.exe
PID 1824 set thread context of 1208	1824	PO PI.exe	Explorer.EXE
PID 656 set thread context of 1208	656	systray.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

systray.exe

description ioc process

File opened for modification C:\Program Files (x86)\Qkx4dv4i\mfcm2txn.exe systray.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Qkx4dv4i\mfcm2txn.exe	systray.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

systray.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	systray.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

PO PI.exePO PI.exesystray.exe

pid	process
1836	PO PI.exe
1836	PO PI.exe
1824	PO PI.exe
1824	PO PI.exe
656	systray.exe
656	systray.exe
656	systray.exe
656	systray.exe
656	systray.exe
656	systray.exe
656	systray.exe
656	systray.exe
656	systray.exe
656	systray.exe
656	systray.exe
656	systray.exe
656	systray.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

PO PI.exesystray.exe

pid process

1824 PO PI.exe
1824 PO PI.exe
1824 PO PI.exe
656 systray.exe
656 systray.exe
656 systray.exe
656 systray.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO PI.exePO PI.exesystray.exe

description pid process

Token: SeDebugPrivilege 1836 PO PI.exe
Token: SeDebugPrivilege 1824 PO PI.exe
Token: SeDebugPrivilege 656 systray.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE

pid	process
1824	PO PI.exe
1824	PO PI.exe
1824	PO PI.exe
656	systray.exe
656	systray.exe
656	systray.exe
656	systray.exe

description	pid	process
Token: SeDebugPrivilege	1836	PO PI.exe
Token: SeDebugPrivilege	1824	PO PI.exe
Token: SeDebugPrivilege	656	systray.exe

pid	process
1208	Explorer.EXE
1208	Explorer.EXE

pid	process
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

PO PI.exeExplorer.EXEsystray.exe

description	pid	process	target process
PID 1836 wrote to memory of 1824	1836	PO PI.exe	PO PI.exe
PID 1836 wrote to memory of 1824	1836	PO PI.exe	PO PI.exe
PID 1836 wrote to memory of 1824	1836	PO PI.exe	PO PI.exe
PID 1836 wrote to memory of 1824	1836	PO PI.exe	PO PI.exe
PID 1836 wrote to memory of 1824	1836	PO PI.exe	PO PI.exe
PID 1836 wrote to memory of 1824	1836	PO PI.exe	PO PI.exe
PID 1836 wrote to memory of 1824	1836	PO PI.exe	PO PI.exe
PID 1208 wrote to memory of 656	1208	Explorer.EXE	systray.exe
PID 1208 wrote to memory of 656	1208	Explorer.EXE	systray.exe
PID 1208 wrote to memory of 656	1208	Explorer.EXE	systray.exe
PID 1208 wrote to memory of 656	1208	Explorer.EXE	systray.exe
PID 656 wrote to memory of 1612	656	systray.exe	cmd.exe
PID 656 wrote to memory of 1612	656	systray.exe	cmd.exe
PID 656 wrote to memory of 1612	656	systray.exe	cmd.exe
PID 656 wrote to memory of 1612	656	systray.exe	cmd.exe
PID 656 wrote to memory of 1680	656	systray.exe	Firefox.exe
PID 656 wrote to memory of 1680	656	systray.exe	Firefox.exe
PID 656 wrote to memory of 1680	656	systray.exe	Firefox.exe
PID 656 wrote to memory of 1680	656	systray.exe	Firefox.exe
PID 656 wrote to memory of 1680	656	systray.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1208

C:\Users\Admin\AppData\Local\Temp\PO PI.exe
"C:\Users\Admin\AppData\Local\Temp\PO PI.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:1836

C:\Users\Admin\AppData\Local\Temp\PO PI.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1824

C:\Windows\SysWOW64\systray.exe
"C:\Windows\SysWOW64\systray.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:656

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PO PI.exe"
3⤵
- Deletes itself
PID:1612

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1680

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\7L887291\7L8logim.jpeg

Filesize
71KB

MD5
d95f1a873cb36657990cdf25b9a75159

SHA1
8144300a18160fd515004f072aee497de589d6c7

SHA256
a2b38b9e0c03e17a510d026b70e9573a5356f265adcccd1d7783a86f6d5afcaf

SHA512
a94a854deca108219a5a66ef80cfc16a42adc0635eadb132823f07d1c17715f0148678ace5b8237d5aa2109826b4e29ff1258f77153618dc9ce3c46529057c60

Download Submit
C:\Users\Admin\AppData\Roaming\7L887291\7L8logrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\7L887291\7L8logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\7L887291\7L8logrv.ini

Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
memory/656-69-0x0000000000000000-mapping.dmp

Download
memory/656-74-0x0000000000630000-0x00000000006C3000-memory.dmp

Filesize
588KB

Download
memory/656-73-0x0000000001FD0000-0x00000000022D3000-memory.dmp

Filesize
3.0MB

Download
memory/656-72-0x00000000000C0000-0x00000000000ED000-memory.dmp

Filesize
180KB

Download
memory/656-71-0x0000000000580000-0x0000000000585000-memory.dmp

Filesize
20KB

Download
memory/1208-68-0x0000000004BC0000-0x0000000004CBB000-memory.dmp

Filesize
1004KB

Download
memory/1208-75-0x0000000004D60000-0x0000000004E34000-memory.dmp

Filesize
848KB

Download
memory/1612-70-0x0000000000000000-mapping.dmp

Download
memory/1824-65-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1824-66-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/1824-63-0x000000000041E290-mapping.dmp

Download
memory/1824-62-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1824-60-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1824-59-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1824-67-0x00000000002B0000-0x00000000002C4000-memory.dmp

Filesize
80KB

Download
memory/1836-54-0x0000000000D30000-0x0000000000DAA000-memory.dmp

Filesize
488KB

Download
memory/1836-58-0x0000000000810000-0x000000000084E000-memory.dmp

Filesize
248KB

Download
memory/1836-57-0x0000000004420000-0x0000000004486000-memory.dmp

Filesize
408KB

Download
memory/1836-56-0x00000000003C0000-0x00000000003CA000-memory.dmp

Filesize
40KB

Download
memory/1836-55-0x0000000075501000-0x0000000075503000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads