formbook | 5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8

General

Target

5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe
Size

1.1MB
MD5

5edb0f8e0ef6dd1e0d402f644c874e0f
SHA1

46e50727606336dbe5257ba0c9e77006b7b710e0
SHA256

5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8
SHA512

8129e3a284ed8514ed71367d03e8afd537d6636a78dce7995d2f48f32857a67a87dcdca102a45b33ab56e5e6486c45205d552b51b6907eda801def655288e6a8
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaC6WzN6M6ZdLNX50DEMhc:7JZoQrbTFZY1iaC6sb6TnAc

Score

10^/10

formbook c24t discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c24t

Decoy

ealthbridgeccs.online

ngelicais.art

uktuksu1.sbs

fapoker.asia

hecreature.tech

orenzoplaybest14.xyz

op-smartphones-deal.today

delark.click

7395.asia

otnews.cfd

j16e.xyz

oko.events

fscxb.top

roudtxliberals.vote

asas-br.bond

ourhealthyourlife.shop

fbpd.top

j9u9.xyz

uijiuw.top

aming-chair-37588.bond

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2736-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2736-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2656-11-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2964 set thread context of 2736	2964	5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe	30
PID 2736 set thread context of 1232	2736	svchost.exe	21
PID 2656 set thread context of 1232	2656	chkdsk.exe	21

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2736	svchost.exe
2736	svchost.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe
2656	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2964	5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe
2736	svchost.exe
2736	svchost.exe
2736	svchost.exe
2656	chkdsk.exe
2656	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	svchost.exe
Token: SeDebugPrivilege	2656	chkdsk.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2964	5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe
2964	5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe
1232	Explorer.EXE
1232	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2964	5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe
2964	5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 2736	2964	5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe	30
PID 2964 wrote to memory of 2736	2964	5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe	30
PID 2964 wrote to memory of 2736	2964	5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe	30
PID 2964 wrote to memory of 2736	2964	5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe	30
PID 2964 wrote to memory of 2736	2964	5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe	30
PID 1232 wrote to memory of 2656	1232	Explorer.EXE	31
PID 1232 wrote to memory of 2656	1232	Explorer.EXE	31
PID 1232 wrote to memory of 2656	1232	Explorer.EXE	31
PID 1232 wrote to memory of 2656	1232	Explorer.EXE	31
PID 2656 wrote to memory of 2716	2656	chkdsk.exe	32
PID 2656 wrote to memory of 2716	2656	chkdsk.exe	32
PID 2656 wrote to memory of 2716	2656	chkdsk.exe	32
PID 2656 wrote to memory of 2716	2656	chkdsk.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Users\Admin\AppData\Local\Temp\5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe
  "C:\Users\Admin\AppData\Local\Temp\5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2964
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2736
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2656
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

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/1232-8-0x00000000062B0000-0x00000000063D2000-memory.dmp

Filesize
1.1MB

Download
memory/1232-21-0x0000000004420000-0x0000000004508000-memory.dmp

Filesize
928KB

Download
memory/1232-19-0x0000000004420000-0x0000000004508000-memory.dmp

Filesize
928KB

Download
memory/1232-18-0x0000000004420000-0x0000000004508000-memory.dmp

Filesize
928KB

Download
memory/1232-12-0x00000000062B0000-0x00000000063D2000-memory.dmp

Filesize
1.1MB

Download
memory/2656-9-0x00000000000E0000-0x00000000000E7000-memory.dmp

Filesize
28KB

Download
memory/2656-10-0x00000000000E0000-0x00000000000E7000-memory.dmp

Filesize
28KB

Download
memory/2656-11-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2736-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2736-7-0x0000000000140000-0x0000000000154000-memory.dmp

Filesize
80KB

Download
memory/2736-4-0x0000000000BE0000-0x0000000000EE3000-memory.dmp

Filesize
3.0MB

Download
memory/2736-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2964-2-0x0000000003A00000-0x0000000003E00000-memory.dmp

Filesize
4.0MB

Download

Analysis

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