formbook | 81b6eb47d0ce09b5fa5b7a6d6e16cdf15de3f58242f7910d1295054473064479

General

Target

cópia de pagamento.exe
Size

907KB
MD5

9b19fc7d612041a80bf9934df29182df
SHA1

1f919621f1d67db72b2bc06d5c3a3a44b4dadca6
SHA256

7b18ea6437aefcf7e56f6b547f41043267e7fb17c93ed5b139070c550fc7b65b
SHA512

29d2524403cbcf015781cf0bd27fde9b56a4304ab79a69c831f7a78cb3b39e20c88364603ee228096ab98fa3d2f036249b2a2a873082a89e573cb642c7e0179d
SSDEEP

12288:Vxu3f7pCT/0e5hz9bH2iN+T/0e5hz9bBBULna0zwa1CgxV5KHBzqAKhKX6fIhT37:VqAT/0shbH1cT/0shbvU7aC58tqAmib

Score

10^/10

formbook j02y discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

j02y

Decoy

toplinkstorage.app

danny-mickey.space

0755aite.net

okchurch.info

4tlracing.com

jacksoncafepaola.com

552northvictoria.com

eevakoskela.info

tradecontractortraining.com

abtbank.online

voicetall.com

chicken-shack.com

acmumzo.info

futureclosers.com

bctugala.com

adagihlina.xyz

emprendeahora.pro

bybala.com

hlcp5533.com

ingspira.com

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1924-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1924-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4248-24-0x0000000000C20000-0x0000000000C4F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3536 set thread context of 1924	3536	cópia de pagamento.exe	99
PID 1924 set thread context of 3440	1924	cópia de pagamento.exe	56
PID 4248 set thread context of 3440	4248	wlanext.exe	56

System Location Discovery: System Language Discovery 1 TTPs 3 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	cópia de pagamento.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wlanext.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 40 IoCs

pid	Process
1924	cópia de pagamento.exe
1924	cópia de pagamento.exe
1924	cópia de pagamento.exe
1924	cópia de pagamento.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe
4248	wlanext.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1924	cópia de pagamento.exe
1924	cópia de pagamento.exe
1924	cópia de pagamento.exe
4248	wlanext.exe
4248	wlanext.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1924	cópia de pagamento.exe
Token: SeDebugPrivilege	4248	wlanext.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3536 wrote to memory of 1924	3536	cópia de pagamento.exe	99
PID 3536 wrote to memory of 1924	3536	cópia de pagamento.exe	99
PID 3536 wrote to memory of 1924	3536	cópia de pagamento.exe	99
PID 3536 wrote to memory of 1924	3536	cópia de pagamento.exe	99
PID 3536 wrote to memory of 1924	3536	cópia de pagamento.exe	99
PID 3536 wrote to memory of 1924	3536	cópia de pagamento.exe	99
PID 3440 wrote to memory of 4248	3440	Explorer.EXE	100
PID 3440 wrote to memory of 4248	3440	Explorer.EXE	100
PID 3440 wrote to memory of 4248	3440	Explorer.EXE	100
PID 4248 wrote to memory of 3224	4248	wlanext.exe	101
PID 4248 wrote to memory of 3224	4248	wlanext.exe	101
PID 4248 wrote to memory of 3224	4248	wlanext.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Users\Admin\AppData\Local\Temp\cópia de pagamento.exe
  "C:\Users\Admin\AppData\Local\Temp\cópia de pagamento.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3536
- - C:\Users\Admin\AppData\Local\Temp\cópia de pagamento.exe
    "C:\Users\Admin\AppData\Local\Temp\cópia de pagamento.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1924
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4248
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\cópia de pagamento.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3224

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/1924-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1924-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1924-19-0x0000000001110000-0x0000000001125000-memory.dmp

Filesize
84KB

Download
memory/1924-16-0x0000000001620000-0x000000000196A000-memory.dmp

Filesize
3.3MB

Download
memory/3440-32-0x0000000008E50000-0x0000000008F5F000-memory.dmp

Filesize
1.1MB

Download
memory/3440-30-0x0000000008E50000-0x0000000008F5F000-memory.dmp

Filesize
1.1MB

Download
memory/3440-29-0x0000000008E50000-0x0000000008F5F000-memory.dmp

Filesize
1.1MB

Download
memory/3440-25-0x0000000007D80000-0x0000000007E37000-memory.dmp

Filesize
732KB

Download
memory/3440-20-0x0000000007D80000-0x0000000007E37000-memory.dmp

Filesize
732KB

Download
memory/3536-6-0x0000000004EA0000-0x0000000004EBA000-memory.dmp

Filesize
104KB

Download
memory/3536-5-0x0000000004B70000-0x0000000004B7A000-memory.dmp

Filesize
40KB

Download
memory/3536-11-0x0000000007AD0000-0x0000000007B6C000-memory.dmp

Filesize
624KB

Download
memory/3536-12-0x0000000007A50000-0x0000000007A84000-memory.dmp

Filesize
208KB

Download
memory/3536-9-0x0000000006200000-0x000000000620C000-memory.dmp

Filesize
48KB

Download
memory/3536-15-0x0000000074BE0000-0x0000000075390000-memory.dmp

Filesize
7.7MB

Download
memory/3536-8-0x0000000074BE0000-0x0000000075390000-memory.dmp

Filesize
7.7MB

Download
memory/3536-7-0x0000000074BEE000-0x0000000074BEF000-memory.dmp

Filesize
4KB

Download
memory/3536-0-0x0000000074BEE000-0x0000000074BEF000-memory.dmp

Filesize
4KB

Download
memory/3536-10-0x00000000079A0000-0x0000000007A24000-memory.dmp

Filesize
528KB

Download
memory/3536-1-0x00000000000C0000-0x00000000001A8000-memory.dmp

Filesize
928KB

Download
memory/3536-2-0x00000000051D0000-0x0000000005774000-memory.dmp

Filesize
5.6MB

Download
memory/3536-3-0x0000000004C20000-0x0000000004CB2000-memory.dmp

Filesize
584KB

Download
memory/3536-4-0x0000000074BE0000-0x0000000075390000-memory.dmp

Filesize
7.7MB

Download
memory/4248-24-0x0000000000C20000-0x0000000000C4F000-memory.dmp

Filesize
188KB

Download
memory/4248-23-0x0000000000150000-0x0000000000167000-memory.dmp

Filesize
92KB

Download
memory/4248-21-0x0000000000150000-0x0000000000167000-memory.dmp

Filesize
92KB

Download

Analysis

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