formbook | bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300

General

Target

bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe
Size

373KB
MD5

098bdeedb52a2d4ed8a1de69968b82a2
SHA1

1f590e44603ab96c1f7a8cfc180f13d7dd2f8dc4
SHA256

bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300
SHA512

08652d74f82040d62528ab844318c51fecb997458b58147cb16f9e701bd8ed2630acb7277069638ac57cedfde5a56c2d05b361095cc1ba99f3d9f0669c4d3cf9
SSDEEP

6144:RyTMZytLYi08L8YnFfBXsOBrFtHrnObhcTm1PjyXnKI6/va6XWgA5Dyh10FNL:iMtBtGBc0rFtHrO6Tm1Ly56/vaXxyKJ

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/2872-12-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2624 set thread context of 2872	2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe	31

System Location Discovery: System Language Discovery 1 TTPs 1 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	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe
2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe
2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe
2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe
2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe
2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe
2872	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 2872	2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe	31
PID 2624 wrote to memory of 2872	2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe	31
PID 2624 wrote to memory of 2872	2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe	31
PID 2624 wrote to memory of 2872	2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe	31
PID 2624 wrote to memory of 2872	2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe	31
PID 2624 wrote to memory of 2872	2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe	31
PID 2624 wrote to memory of 2872	2624	bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe	31

C:\Users\Admin\AppData\Local\Temp\bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe
"C:\Users\Admin\AppData\Local\Temp\bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Users\Admin\AppData\Local\Temp\bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe
  "C:\Users\Admin\AppData\Local\Temp\bf9ad92f64bef520169526646d87ba455cd0a445dd3eed335cf621475ab9d300.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2872

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

Loading Replay Monitor...

Downloads

memory/2624-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/2624-1-0x0000000001190000-0x00000000011F4000-memory.dmp

Filesize
400KB

Download
memory/2624-2-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2624-3-0x00000000009E0000-0x00000000009EE000-memory.dmp

Filesize
56KB

Download
memory/2624-4-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2624-5-0x0000000001120000-0x0000000001176000-memory.dmp

Filesize
344KB

Download
memory/2624-13-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2872-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2872-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2872-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2872-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2872-14-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing