formbook | 3c4aa39e200cb4303a3e5970bbedb5a1bb1baa656c3fc2286f82392a91e4a4ea

General

Target

JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
Size

511KB
MD5

6923309c1cf759930f67710ac9dfd328
SHA1

e74291e311e8466dd7222a2eb3779848385dd3fa
SHA256

3c4aa39e200cb4303a3e5970bbedb5a1bb1baa656c3fc2286f82392a91e4a4ea
SHA512

993dbcc6063f3a1b293fb3e2c794f1f817a4703d5b21154fc47e02998f72e334cca38b820c6f657a8345775690eed93f2a8f9202b453490735bc89cebf3ecbd5
SSDEEP

12288:JGk9RQVXaahBaUi2iNIYI864BI94c9Yr+tJXktSljS:JtRQMahAUi1u/864u4cWit7g

Score

10^/10

formbook kzk9 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

kzk9

Decoy

tianconghuo.club

1996-page.com

ourtownmax.net

conservativetreehose.com

synth.repair

donnachicacreperia.com

tentfull.com

weapp.download

surfersink.com

gattlebusinessservices.com

sebastian249.com

anhphuc.company

betternatureproducts.net

defroplate.com

seattlesquidsquad.com

polarjob.com

lendingadvantage.com

angelsondope.com

goportjitney.com

tiendagrupojagr.com

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/2488-12-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2960 set thread context of 2488	2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2816	2488	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 2488	2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	31
PID 2960 wrote to memory of 2488	2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	31
PID 2960 wrote to memory of 2488	2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	31
PID 2960 wrote to memory of 2488	2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	31
PID 2960 wrote to memory of 2488	2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	31
PID 2960 wrote to memory of 2488	2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	31
PID 2960 wrote to memory of 2488	2960	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	31
PID 2488 wrote to memory of 2816	2488	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	32
PID 2488 wrote to memory of 2816	2488	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	32
PID 2488 wrote to memory of 2816	2488	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	32
PID 2488 wrote to memory of 2816	2488	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2488
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 36
    3⤵
    - Program crash
    PID:2816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2488-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2488-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2488-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2488-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2960-0-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/2960-1-0x0000000000B40000-0x0000000000BC6000-memory.dmp

Filesize
536KB

Download
memory/2960-2-0x0000000000940000-0x000000000094E000-memory.dmp

Filesize
56KB

Download
memory/2960-3-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2960-4-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/2960-5-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2960-6-0x0000000002020000-0x0000000002076000-memory.dmp

Filesize
344KB

Download
memory/2960-13-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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