formbook | 0cfdb411366e6a45b0338fa218caffca2ae946a324fab7b009147ed53e0edebd

Analysis

max time kernel
300s
max time network
300s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-09-2024 12:47

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Signed Contract.exe
Size

764KB
MD5

c29c35fdd0cb6fb2a67ebe5e66d031bf
SHA1

8069a08c89042bf1bff896e9d8a68f05db5af316
SHA256

7d99c8ec073617681fc7dca3714bce08da1e6a9920aa39b57af734238d5d685f
SHA512

f6dd09aae40a4aa6291d0d384f5b5d4fe94770df93585b235fed994f2dbbeb214550b0a3c55bb479f4c5b316520748d2ccec01b1b85e965fb0c51948d7a229b1
SSDEEP

12288:v6Wq4aaE6KwyF5L0Y2D1PqLXkK+rLst81zQw+h5GATMnNTXXe53V:tthEVaPqL059QhtTMNTXel

Score

10^/10

formbook c89p discovery rat spyware stealer trojan upx

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c89p

Decoy

ftersaleb.top

dcustomdesgins.net

ostbet2024.live

rhgtrdjdjytkyhretrdjfytd.buzz

atauniversity.tech

idoctor365.net

x-design-courses-29670.bond

ellowold-pc.top

ransportationmmsytpro.top

areerfest.xyz

artiresbah-in.today

ijie.pro

torehousestudio.info

69-11-luxury-watches.shop

earing-tests-44243.bond

hits.shop

hzl9.bond

lood-test-jp-1.bond

livialiving.online

usymomsmakingmoney.online

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/2752-4-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2752-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2712-16-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2648-6-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2648 set thread context of 2752	2648	Signed Contract.exe	30
PID 2752 set thread context of 1188	2752	svchost.exe	21
PID 2712 set thread context of 1188	2712	NAPSTAT.EXE	21

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2648-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/memory/2648-6-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

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	Signed Contract.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NAPSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 61 IoCs

pid	Process
2752	svchost.exe
2752	svchost.exe
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2648	Signed Contract.exe
2752	svchost.exe
2752	svchost.exe
2752	svchost.exe
2712	NAPSTAT.EXE
2712	NAPSTAT.EXE

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2752	svchost.exe
Token: SeDebugPrivilege	2712	NAPSTAT.EXE
Token: SeShutdownPrivilege	1188	Explorer.EXE

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2648	Signed Contract.exe
2648	Signed Contract.exe
2648	Signed Contract.exe
2648	Signed Contract.exe
2648	Signed Contract.exe
1188	Explorer.EXE
1188	Explorer.EXE

Suspicious use of SendNotifyMessage 5 IoCs

pid	Process
2648	Signed Contract.exe
2648	Signed Contract.exe
2648	Signed Contract.exe
2648	Signed Contract.exe
2648	Signed Contract.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 2752	2648	Signed Contract.exe	30
PID 2648 wrote to memory of 2752	2648	Signed Contract.exe	30
PID 2648 wrote to memory of 2752	2648	Signed Contract.exe	30
PID 2648 wrote to memory of 2752	2648	Signed Contract.exe	30
PID 2648 wrote to memory of 2752	2648	Signed Contract.exe	30
PID 1188 wrote to memory of 2712	1188	Explorer.EXE	31
PID 1188 wrote to memory of 2712	1188	Explorer.EXE	31
PID 1188 wrote to memory of 2712	1188	Explorer.EXE	31
PID 1188 wrote to memory of 2712	1188	Explorer.EXE	31
PID 2712 wrote to memory of 2716	2712	NAPSTAT.EXE	32
PID 2712 wrote to memory of 2716	2712	NAPSTAT.EXE	32
PID 2712 wrote to memory of 2716	2712	NAPSTAT.EXE	32
PID 2712 wrote to memory of 2716	2712	NAPSTAT.EXE	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Users\Admin\AppData\Local\Temp\Signed Contract.exe
  "C:\Users\Admin\AppData\Local\Temp\Signed Contract.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:2648
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Signed Contract.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2752
- C:\Windows\SysWOW64\NAPSTAT.EXE
  "C:\Windows\SysWOW64\NAPSTAT.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:2712
- - 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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1188-17-0x0000000004330000-0x000000000441F000-memory.dmp

Filesize
956KB

Download
memory/1188-12-0x0000000004330000-0x000000000441F000-memory.dmp

Filesize
956KB

Download
memory/1188-26-0x0000000004F00000-0x000000000500D000-memory.dmp

Filesize
1.1MB

Download
memory/1188-24-0x0000000004F00000-0x000000000500D000-memory.dmp

Filesize
1.1MB

Download
memory/1188-9-0x0000000003BB0000-0x0000000003CB0000-memory.dmp

Filesize
1024KB

Download
memory/1188-23-0x0000000004F00000-0x000000000500D000-memory.dmp

Filesize
1.1MB

Download
memory/2648-3-0x0000000003E00000-0x0000000004200000-memory.dmp

Filesize
4.0MB

Download
memory/2648-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2648-6-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2712-13-0x00000000002E0000-0x0000000000326000-memory.dmp

Filesize
280KB

Download
memory/2712-15-0x00000000002E0000-0x0000000000326000-memory.dmp

Filesize
280KB

Download
memory/2712-16-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2752-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2752-7-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/2752-11-0x0000000000140000-0x0000000000154000-memory.dmp

Filesize
80KB

Download
memory/2752-4-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download