formbook | 92b1f2ee516e87aff3e8ef41ae051276a9cb1002ccd788a15e527df458631a70

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
02-08-2024 09:43

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General

Target

92b1f2ee516e87aff3e8ef41ae051276a9cb1002ccd788a15e527df458631a70.exe
Size

595KB
MD5

ee2875f921602d7f7f26f0b788f1b3f7
SHA1

3690ccea99c4399ef2990ca3dc3d79eb29666794
SHA256

92b1f2ee516e87aff3e8ef41ae051276a9cb1002ccd788a15e527df458631a70
SHA512

85c813d764baba7a8a9f246cfa26208a886c64c1df8cca3863e8898342382a4dd7a0734b34fc904fb6637f1dec215da92a714d01c1fb430a811933dfd99275e5
SSDEEP

12288:6YV6MorX7qzuC3QHO9FQVHPF51jgcEQ433ZwrXUuunukKlkA:pBXu9HGaVHOwrXUuepDA

Score

10^/10

formbook ephb discovery rat spyware stealer trojan upx

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ephb

Decoy

chertsey-estates.com

zeushomeservices.com

2ax4z.com

leihuluofkauai.com

sunshinespd.com

lifeexplorer.today

holywellspringwater.com

clip-on-veneers.today

jaspershousekeeping.com

tcyd123.top

aimpets.com

n11ni5.cfd

oplmanager.dev

parisolympicgamesguide.com

askwhtevr.com

usino.online

pa6yy8h.xyz

tabomediaa.com

iwill3d.com

piqhome.site

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/1988-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1988-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4924-22-0x0000000000B20000-0x0000000000B4F000-memory.dmp	formbook

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2640-0-0x0000000000B70000-0x0000000000CC7000-memory.dmp	upx
behavioral2/memory/2640-14-0x0000000000B70000-0x0000000000CC7000-memory.dmp	upx

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/2640-14-0x0000000000B70000-0x0000000000CC7000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2640 set thread context of 1988	2640	92b1f2ee516e87aff3e8ef41ae051276a9cb1002ccd788a15e527df458631a70.exe	86
PID 1988 set thread context of 3520	1988	svchost.exe	56
PID 4924 set thread context of 3520	4924	help.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	92b1f2ee516e87aff3e8ef41ae051276a9cb1002ccd788a15e527df458631a70.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	help.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
1988	svchost.exe
1988	svchost.exe
1988	svchost.exe
1988	svchost.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe
4924	help.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2640	92b1f2ee516e87aff3e8ef41ae051276a9cb1002ccd788a15e527df458631a70.exe
1988	svchost.exe
1988	svchost.exe
1988	svchost.exe
4924	help.exe
4924	help.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1988	svchost.exe
Token: SeDebugPrivilege	4924	help.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3520	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2640 wrote to memory of 1988	2640	92b1f2ee516e87aff3e8ef41ae051276a9cb1002ccd788a15e527df458631a70.exe	86
PID 2640 wrote to memory of 1988	2640	92b1f2ee516e87aff3e8ef41ae051276a9cb1002ccd788a15e527df458631a70.exe	86
PID 2640 wrote to memory of 1988	2640	92b1f2ee516e87aff3e8ef41ae051276a9cb1002ccd788a15e527df458631a70.exe	86
PID 2640 wrote to memory of 1988	2640	92b1f2ee516e87aff3e8ef41ae051276a9cb1002ccd788a15e527df458631a70.exe	86
PID 3520 wrote to memory of 4924	3520	Explorer.EXE	87
PID 3520 wrote to memory of 4924	3520	Explorer.EXE	87
PID 3520 wrote to memory of 4924	3520	Explorer.EXE	87
PID 4924 wrote to memory of 2096	4924	help.exe	88
PID 4924 wrote to memory of 2096	4924	help.exe	88
PID 4924 wrote to memory of 2096	4924	help.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Users\Admin\AppData\Local\Temp\92b1f2ee516e87aff3e8ef41ae051276a9cb1002ccd788a15e527df458631a70.exe
  "C:\Users\Admin\AppData\Local\Temp\92b1f2ee516e87aff3e8ef41ae051276a9cb1002ccd788a15e527df458631a70.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\92b1f2ee516e87aff3e8ef41ae051276a9cb1002ccd788a15e527df458631a70.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1988
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.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:4924
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2096

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1988-15-0x0000000001600000-0x000000000194A000-memory.dmp

Filesize
3.3MB

Download
memory/1988-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1988-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1988-18-0x0000000001AE0000-0x0000000001AF4000-memory.dmp

Filesize
80KB

Download
memory/2640-14-0x0000000000B70000-0x0000000000CC7000-memory.dmp

Filesize
1.3MB

Download
memory/2640-0-0x0000000000B70000-0x0000000000CC7000-memory.dmp

Filesize
1.3MB

Download
memory/2640-11-0x0000000000AA0000-0x0000000000AA4000-memory.dmp

Filesize
16KB

Download
memory/3520-19-0x00000000078F0000-0x0000000007A3E000-memory.dmp

Filesize
1.3MB

Download
memory/3520-24-0x00000000078F0000-0x0000000007A3E000-memory.dmp

Filesize
1.3MB

Download
memory/3520-27-0x0000000008E20000-0x0000000008F56000-memory.dmp

Filesize
1.2MB

Download
memory/3520-28-0x0000000008E20000-0x0000000008F56000-memory.dmp

Filesize
1.2MB

Download
memory/3520-31-0x0000000008E20000-0x0000000008F56000-memory.dmp

Filesize
1.2MB

Download
memory/4924-21-0x0000000000560000-0x0000000000567000-memory.dmp

Filesize
28KB

Download
memory/4924-20-0x0000000000560000-0x0000000000567000-memory.dmp

Filesize
28KB

Download
memory/4924-22-0x0000000000B20000-0x0000000000B4F000-memory.dmp

Filesize
188KB

Download