formbook | 326090842ee6d692e02ae131a2003658939f60e79bceb7bad983cfe16400062f

General

Target

deed11e2b4b23dbe0c9ef99b5390bd6f.exe
Size

708KB
MD5

deed11e2b4b23dbe0c9ef99b5390bd6f
SHA1

158662003b5e63c1419267d5e8b0d4ce79e72081
SHA256

326090842ee6d692e02ae131a2003658939f60e79bceb7bad983cfe16400062f
SHA512

380a473f9e6ce25e5e68ac15794d1bcbe125a887067a48c258abb625b96080d90fad32cb860043af4b32d4d8afc84365726e4a861ec03976a6bec7651d3e0380

Score

10^/10

formbook evasion rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.thesiromiel.com/kgw/

Decoy

valentinakasu.com

soyelmatador.com

collaborativeprosperity.com

power8brokers.com

nexus-ink.com

manpasandmeatmarket.com

the-ethical-forums.today

maryannpark.com

bikininbodymommy.com

pxwuo.com

bigbangmerch.com

okaysinger.com

shopcarpe.com

rainbowhillsswimclub.com

crifinmarket.com

ebl-play.net

forceandsonsequipment.com

viagraytqwi.com

latashashop.com

suffocatinglymundanepodcast.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
behavioral2/memory/1520-13-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1520-14-0x000000000041EB70-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:

deed11e2b4b23dbe0c9ef99b5390bd6f.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	deed11e2b4b23dbe0c9ef99b5390bd6f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	deed11e2b4b23dbe0c9ef99b5390bd6f.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:

deed11e2b4b23dbe0c9ef99b5390bd6f.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	deed11e2b4b23dbe0c9ef99b5390bd6f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	deed11e2b4b23dbe0c9ef99b5390bd6f.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

deed11e2b4b23dbe0c9ef99b5390bd6f.exe

description pid process target process

PID 648 set thread context of 1520 648 deed11e2b4b23dbe0c9ef99b5390bd6f.exe deed11e2b4b23dbe0c9ef99b5390bd6f.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

deed11e2b4b23dbe0c9ef99b5390bd6f.exe

pid process

1520 deed11e2b4b23dbe0c9ef99b5390bd6f.exe
1520 deed11e2b4b23dbe0c9ef99b5390bd6f.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

deed11e2b4b23dbe0c9ef99b5390bd6f.exe

description pid process

Token: SeDebugPrivilege 648 deed11e2b4b23dbe0c9ef99b5390bd6f.exe

description	pid	process	target process
PID 648 set thread context of 1520	648	deed11e2b4b23dbe0c9ef99b5390bd6f.exe	deed11e2b4b23dbe0c9ef99b5390bd6f.exe

pid	process
1520	deed11e2b4b23dbe0c9ef99b5390bd6f.exe
1520	deed11e2b4b23dbe0c9ef99b5390bd6f.exe

description	pid	process
Token: SeDebugPrivilege	648	deed11e2b4b23dbe0c9ef99b5390bd6f.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

deed11e2b4b23dbe0c9ef99b5390bd6f.exe

description	pid	process	target process
PID 648 wrote to memory of 1520	648	deed11e2b4b23dbe0c9ef99b5390bd6f.exe	deed11e2b4b23dbe0c9ef99b5390bd6f.exe
PID 648 wrote to memory of 1520	648	deed11e2b4b23dbe0c9ef99b5390bd6f.exe	deed11e2b4b23dbe0c9ef99b5390bd6f.exe
PID 648 wrote to memory of 1520	648	deed11e2b4b23dbe0c9ef99b5390bd6f.exe	deed11e2b4b23dbe0c9ef99b5390bd6f.exe
PID 648 wrote to memory of 1520	648	deed11e2b4b23dbe0c9ef99b5390bd6f.exe	deed11e2b4b23dbe0c9ef99b5390bd6f.exe
PID 648 wrote to memory of 1520	648	deed11e2b4b23dbe0c9ef99b5390bd6f.exe	deed11e2b4b23dbe0c9ef99b5390bd6f.exe
PID 648 wrote to memory of 1520	648	deed11e2b4b23dbe0c9ef99b5390bd6f.exe	deed11e2b4b23dbe0c9ef99b5390bd6f.exe

C:\Users\Admin\AppData\Local\Temp\deed11e2b4b23dbe0c9ef99b5390bd6f.exe
"C:\Users\Admin\AppData\Local\Temp\deed11e2b4b23dbe0c9ef99b5390bd6f.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:648

C:\Users\Admin\AppData\Local\Temp\deed11e2b4b23dbe0c9ef99b5390bd6f.exe
"C:\Users\Admin\AppData\Local\Temp\deed11e2b4b23dbe0c9ef99b5390bd6f.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:1520

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/648-2-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/648-3-0x0000000000D20000-0x0000000000D21000-memory.dmp

Filesize
4KB

Download
memory/648-5-0x00000000030B0000-0x00000000030B1000-memory.dmp

Filesize
4KB

Download
memory/648-6-0x0000000005BE0000-0x0000000005BE1000-memory.dmp

Filesize
4KB

Download
memory/648-7-0x0000000005780000-0x0000000005781000-memory.dmp

Filesize
4KB

Download
memory/648-8-0x0000000003080000-0x0000000003081000-memory.dmp

Filesize
4KB

Download
memory/648-9-0x0000000005820000-0x0000000005821000-memory.dmp

Filesize
4KB

Download
memory/648-10-0x0000000005750000-0x0000000005762000-memory.dmp

Filesize
72KB

Download
memory/648-11-0x00000000064D0000-0x000000000653F000-memory.dmp

Filesize
444KB

Download
memory/648-12-0x00000000065B0000-0x00000000065B1000-memory.dmp

Filesize
4KB

Download
memory/1520-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1520-14-0x000000000041EB70-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads