formbook | e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-10-2024 08:06

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General

Target

e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe
Size

1.1MB
MD5

acf8be68b18fe80b0812385f920b9a67
SHA1

77b3d6ef5e56521f9819605617e36acb268cf0cb
SHA256

e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617
SHA512

71a28e5d74d6cfb94144919f289a71a62b692591e00b01f1713ba6f9ca07e1d97e77690408ce7c266d414b541a51b6836c2a19c4f56bef4661916cddc110598b
SSDEEP

24576:0RmJkcoQricOIQxiZY1iaB0NgOMaUDfUb5eJikXO:RJZoQrbTFZY1iaB0NBMam+5d

Score

10^/10

formbook nu01 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

nu01

Decoy

ickleball.codes

avornow.top

rejike.shop

zean.pro

yanbeyan.net

atwithsushi.fun

heimpactphilanthropy.info

ersonal-loans-82514.bond

pringfestpro.xyz

eniorhousings.live

anda-tax.online

d8ul135j.top

nder168.xyz

ealthcare-softwares-my-pl.xyz

7w1q.bond

83167836550.online

etinjo.net

hukira.xyz

ocalip.cloud

cqnh6.digital

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
behavioral2/memory/216-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/216-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/64-12-0x0000000000130000-0x000000000015F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4436 set thread context of 216	4436	e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe	86
PID 216 set thread context of 3408	216	svchost.exe	55
PID 64 set thread context of 3408	64	mstsc.exe	55

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	e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
216	svchost.exe
216	svchost.exe
216	svchost.exe
216	svchost.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe
64	mstsc.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4436	e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe
216	svchost.exe
216	svchost.exe
216	svchost.exe
64	mstsc.exe
64	mstsc.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	216	svchost.exe
Token: SeDebugPrivilege	64	mstsc.exe
Token: SeShutdownPrivilege	3408	Explorer.EXE
Token: SeCreatePagefilePrivilege	3408	Explorer.EXE
Token: SeShutdownPrivilege	3408	Explorer.EXE
Token: SeCreatePagefilePrivilege	3408	Explorer.EXE

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
4436	e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe
4436	e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe
4436	e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe
3408	Explorer.EXE
3408	Explorer.EXE

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4436	e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe
4436	e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe
4436	e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3408	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4436 wrote to memory of 216	4436	e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe	86
PID 4436 wrote to memory of 216	4436	e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe	86
PID 4436 wrote to memory of 216	4436	e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe	86
PID 4436 wrote to memory of 216	4436	e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe	86
PID 3408 wrote to memory of 64	3408	Explorer.EXE	87
PID 3408 wrote to memory of 64	3408	Explorer.EXE	87
PID 3408 wrote to memory of 64	3408	Explorer.EXE	87
PID 64 wrote to memory of 3340	64	mstsc.exe	88
PID 64 wrote to memory of 3340	64	mstsc.exe	88
PID 64 wrote to memory of 3340	64	mstsc.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3408
- C:\Users\Admin\AppData\Local\Temp\e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe
  "C:\Users\Admin\AppData\Local\Temp\e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.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:4436
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\e70447c828015246065108b80ee39088ae98a00561a1531ed0da79b9079f6617.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:216
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.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:64
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3340

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

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Downloads

memory/64-9-0x0000000000E70000-0x0000000000FAA000-memory.dmp

Filesize
1.2MB

Download
memory/64-12-0x0000000000130000-0x000000000015F000-memory.dmp

Filesize
188KB

Download
memory/64-11-0x0000000000E70000-0x0000000000FAA000-memory.dmp

Filesize
1.2MB

Download
memory/216-7-0x0000000001C50000-0x0000000001C65000-memory.dmp

Filesize
84KB

Download
memory/216-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/216-4-0x0000000001900000-0x0000000001C4A000-memory.dmp

Filesize
3.3MB

Download
memory/216-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3408-8-0x0000000008340000-0x00000000084EB000-memory.dmp

Filesize
1.7MB

Download
memory/3408-13-0x0000000008340000-0x00000000084EB000-memory.dmp

Filesize
1.7MB

Download
memory/3408-17-0x0000000002620000-0x00000000026EB000-memory.dmp

Filesize
812KB

Download
memory/3408-18-0x0000000002620000-0x00000000026EB000-memory.dmp

Filesize
812KB

Download
memory/3408-20-0x0000000002620000-0x00000000026EB000-memory.dmp

Filesize
812KB

Download
memory/4436-2-0x0000000004080000-0x0000000004280000-memory.dmp

Filesize
2.0MB

Download