formbook | 0618ad213a6ce0e3dcaa65f80e4379953c38f97dbeccad081b5decc1dce38849

General

Target

inxx.exe
Size

412KB
MD5

99ec724b02038cb9afa938c61bf0c4d5
SHA1

36696bf0da5c4d6bb751018182648fc16e46d79a
SHA256

0618ad213a6ce0e3dcaa65f80e4379953c38f97dbeccad081b5decc1dce38849
SHA512

821a8fef0e1955fab9227d306e161fc393215146955413150fa47216f80b52c7c5c3bb28c155c792f13c0848bd2d1d1b3dd9768f67e789e9c085835c8386c40a

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.besthandstool.icu/uds2/

Decoy

hrrecruitertraining.com

pancakeroll.club

equiposddl.com

fab-9corporation.com

seanformo.com

fisika-uinam.com

cheeseburgerpasta.com

cherylkarlfineartist.com

wunderprodukte.net

3912699.com

sanitizyo.com

856381190.xyz

aprobet42.xyz

knutsfastigheter.com

disalvospizzaitalian.com

energysavingsolarpower.com

oldwonderful.com

se32688.com

samkecollection.com

colegioreynosa.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/1324-2-0x0000000000400000-0x0000000000443000-memory.dmp	formbook
behavioral1/memory/1324-3-0x000000000040188B-mapping.dmp	formbook
behavioral1/memory/1324-5-0x0000000000400000-0x0000000000443000-memory.dmp	formbook
behavioral1/memory/1324-7-0x0000000000340000-0x000000000036E000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

Processes:

inxx.exe

description pid process target process

PID 1824 set thread context of 1324 1824 inxx.exe inxx.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1156 1324 WerFault.exe inxx.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

WerFault.exe

pid process

1156 WerFault.exe
1156 WerFault.exe
1156 WerFault.exe
1156 WerFault.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

inxx.exe

pid process

1824 inxx.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 1156 WerFault.exe

description	pid	process	target process
PID 1824 set thread context of 1324	1824	inxx.exe	inxx.exe

pid	pid_target	process	target process
1156	1324	WerFault.exe	inxx.exe

pid	process
1156	WerFault.exe
1156	WerFault.exe
1156	WerFault.exe
1156	WerFault.exe

pid	process
1824	inxx.exe

description	pid	process
Token: SeDebugPrivilege	1156	WerFault.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

inxx.exeinxx.exe

description	pid	process	target process
PID 1824 wrote to memory of 1324	1824	inxx.exe	inxx.exe
PID 1824 wrote to memory of 1324	1824	inxx.exe	inxx.exe
PID 1824 wrote to memory of 1324	1824	inxx.exe	inxx.exe
PID 1824 wrote to memory of 1324	1824	inxx.exe	inxx.exe
PID 1824 wrote to memory of 1324	1824	inxx.exe	inxx.exe
PID 1324 wrote to memory of 1156	1324	inxx.exe	WerFault.exe
PID 1324 wrote to memory of 1156	1324	inxx.exe	WerFault.exe
PID 1324 wrote to memory of 1156	1324	inxx.exe	WerFault.exe
PID 1324 wrote to memory of 1156	1324	inxx.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\inxx.exe
"C:\Users\Admin\AppData\Local\Temp\inxx.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1824
- C:\Users\Admin\AppData\Local\Temp\inxx.exe
  "C:\Users\Admin\AppData\Local\Temp\inxx.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1324
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1324 -s 524
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1156

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1156-8-0x0000000000000000-mapping.dmp

Download
memory/1156-9-0x0000000002040000-0x0000000002051000-memory.dmp

Filesize
68KB

Download
memory/1324-2-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1324-3-0x000000000040188B-mapping.dmp

Download
memory/1324-5-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1324-6-0x0000000073980000-0x000000007406E000-memory.dmp

Filesize
6.9MB

Download
memory/1324-7-0x0000000000340000-0x000000000036E000-memory.dmp

Filesize
184KB

Download
memory/1824-4-0x0000000000490000-0x00000000004BC000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing