formbook | 5a0cf9e038ccec4e878a683c917c93d28a9aa301d478711b01c199e9fb14aa30

Analysis

max time kernel
146s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-08-2024 08:55

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General

Target

2.exe
Size

26KB
MD5

f56fa841f1e1bf4b7a607a8e2fc5ae22
SHA1

776fa68f0a1423a3d357c5af61e44f19b7e028ea
SHA256

5a0cf9e038ccec4e878a683c917c93d28a9aa301d478711b01c199e9fb14aa30
SHA512

8bc684c6de769b48e18942585ca3ad4946223122b42dcc6f032ed77f7204280b456c8cee2cf8ea6de91a0be0b16d621ca06e555cb10411d3ac1e59011f76b292
SSDEEP

768:EAs8m2LjndUuHMFSlWXokQPhbOcjC49N0Z:jsP2LjndUuHMgIXokQPgcjC49No

Score

10^/10

formbook rn94 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

rn94

Decoy

st68v.xyz

conciergenotary.net

qwechaotk.top

rtpdonatoto29.xyz

8ad.xyz

powermove.top

cameras-30514.bond

vanguardcoffee.shop

umoe53fxc1bsujv.buzz

consultoriamax.net

hplxx.com

ndu.wtf

yzh478c.xyz

bigbrown999.site

xiake07.asia

resdai.xyz

the35678.shop

ba6rf.rest

ceo688.com

phimxhot.xyz

Signatures

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

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 3652 created 3420	3652	2.exe	56

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/1152-1092-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1152-1096-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3652 set thread context of 1152	3652	2.exe	94
PID 1152 set thread context of 3420	1152	2.exe	56
PID 2952 set thread context of 3420	2952	chkdsk.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	2.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

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
3652	2.exe
1152	2.exe
1152	2.exe
1152	2.exe
1152	2.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe
2952	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1152	2.exe
1152	2.exe
1152	2.exe
2952	chkdsk.exe
2952	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	3652	2.exe
Token: SeDebugPrivilege	3652	2.exe
Token: SeDebugPrivilege	1152	2.exe
Token: SeDebugPrivilege	2952	chkdsk.exe
Token: SeShutdownPrivilege	3420	Explorer.EXE
Token: SeCreatePagefilePrivilege	3420	Explorer.EXE
Token: SeShutdownPrivilege	3420	Explorer.EXE
Token: SeCreatePagefilePrivilege	3420	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3420	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3652 wrote to memory of 1152	3652	2.exe	94
PID 3652 wrote to memory of 1152	3652	2.exe	94
PID 3652 wrote to memory of 1152	3652	2.exe	94
PID 3652 wrote to memory of 1152	3652	2.exe	94
PID 3652 wrote to memory of 1152	3652	2.exe	94
PID 3652 wrote to memory of 1152	3652	2.exe	94
PID 3420 wrote to memory of 2952	3420	Explorer.EXE	95
PID 3420 wrote to memory of 2952	3420	Explorer.EXE	95
PID 3420 wrote to memory of 2952	3420	Explorer.EXE	95
PID 2952 wrote to memory of 976	2952	chkdsk.exe	96
PID 2952 wrote to memory of 976	2952	chkdsk.exe	96
PID 2952 wrote to memory of 976	2952	chkdsk.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Users\Admin\AppData\Local\Temp\2.exe
  "C:\Users\Admin\AppData\Local\Temp\2.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3652
- C:\Users\Admin\AppData\Local\Temp\2.exe
  "C:\Users\Admin\AppData\Local\Temp\2.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:1152
- 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:2952
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\2.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1152-1092-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1152-1093-0x00000000015C0000-0x000000000190A000-memory.dmp

Filesize
3.3MB

Download
memory/1152-1097-0x00000000014A0000-0x00000000014B5000-memory.dmp

Filesize
84KB

Download
memory/1152-1096-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2952-1101-0x0000000000B60000-0x0000000000B6A000-memory.dmp

Filesize
40KB

Download
memory/3420-1098-0x0000000008970000-0x0000000008AAE000-memory.dmp

Filesize
1.2MB

Download
memory/3420-1109-0x0000000008AB0000-0x0000000008BE9000-memory.dmp

Filesize
1.2MB

Download
memory/3420-1106-0x0000000008AB0000-0x0000000008BE9000-memory.dmp

Filesize
1.2MB

Download
memory/3420-1103-0x0000000008970000-0x0000000008AAE000-memory.dmp

Filesize
1.2MB

Download
memory/3652-33-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-23-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-61-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-67-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-65-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-63-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-59-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-57-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-55-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-53-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-51-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-49-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-47-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-43-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-41-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-45-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-39-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-37-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-35-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-11-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-31-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-29-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-25-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-17-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-21-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-19-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-15-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-13-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-9-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-7-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-5-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-27-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-4-0x00000000065C0000-0x00000000066B8000-memory.dmp

Filesize
992KB

Download
memory/3652-898-0x000000007446E000-0x000000007446F000-memory.dmp

Filesize
4KB

Download
memory/3652-1079-0x0000000074460000-0x0000000074C10000-memory.dmp

Filesize
7.7MB

Download
memory/3652-1080-0x0000000074460000-0x0000000074C10000-memory.dmp

Filesize
7.7MB

Download
memory/3652-1081-0x0000000006800000-0x0000000006878000-memory.dmp

Filesize
480KB

Download
memory/3652-1082-0x0000000006880000-0x00000000068CC000-memory.dmp

Filesize
304KB

Download
memory/3652-1083-0x00000000071B0000-0x0000000007754000-memory.dmp

Filesize
5.6MB

Download
memory/3652-1084-0x0000000006AA0000-0x0000000006AF4000-memory.dmp

Filesize
336KB

Download
memory/3652-3-0x00000000065C0000-0x00000000066BE000-memory.dmp

Filesize
1016KB

Download
memory/3652-2-0x0000000074460000-0x0000000074C10000-memory.dmp

Filesize
7.7MB

Download
memory/3652-1-0x0000000000B10000-0x0000000000B1E000-memory.dmp

Filesize
56KB

Download
memory/3652-0-0x000000007446E000-0x000000007446F000-memory.dmp

Filesize
4KB

Download
memory/3652-1088-0x0000000074460000-0x0000000074C10000-memory.dmp

Filesize
7.7MB

Download
memory/3652-1089-0x0000000074460000-0x0000000074C10000-memory.dmp

Filesize
7.7MB

Download
memory/3652-1090-0x0000000074460000-0x0000000074C10000-memory.dmp

Filesize
7.7MB

Download
memory/3652-1095-0x0000000074460000-0x0000000074C10000-memory.dmp

Filesize
7.7MB

Download