formbook | e4bd5a51df8c1a437dda0ea6d067f61c897034f8e274e1cf1d1ffa5b931816c2

Analysis

max time kernel
149s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04-10-2024 12:58

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General

Target

DF20230706CFW07L.exe
Size

1.1MB
MD5

41a8e104259af538bf7743d979f9fc32
SHA1

f69fc5cb7a6401e345a5570e9041ba180faeaad5
SHA256

e4bd5a51df8c1a437dda0ea6d067f61c897034f8e274e1cf1d1ffa5b931816c2
SHA512

1ea7c153b93f4b9607e3e046dcf0bd270b0bc769417287c8edd6f421590e41cd871492ae738947d8a3122a3185a8805eac738c0d80ee18b0aceef8b2ce3acff0
SSDEEP

12288:JLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QNJPiDGJE1kDHrtr7PDrfrxolemd6vNB:NfmMv6Ckr7Mny5QNJK6JWEL1TOleme

Score

10^/10

formbook e62s discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

e62s

Decoy

ellinksa.shop

uckyspinph.xyz

owdark.net

arriage-therapy-72241.bond

w7ijko4rv4p97b.top

heirbuzzwords.buzz

aspart.shop

ctivemail5-kagoya-com.info

shacertification9.shop

zitcd65k3.buzz

llkosoi.info

ru8.info

rhgtrdjdjykyetrdjftd.buzz

yschoollist.kiwi

oftfolio.online

rograma-de-almacen-2.online

oudoarms.top

mwquas.xyz

orjagaucha.website

nlinechat-mh.online

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/5108-3-0x00000000004B0000-0x00000000004DF000-memory.dmp	formbook
behavioral2/memory/5108-7-0x00000000004B0000-0x00000000004DF000-memory.dmp	formbook
behavioral2/memory/5108-11-0x00000000004B0000-0x00000000004DF000-memory.dmp	formbook
behavioral2/memory/2848-18-0x0000000000D30000-0x0000000000D5F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3316 set thread context of 5108	3316	DF20230706CFW07L.exe	89
PID 5108 set thread context of 3428	5108	svchost.exe	54
PID 5108 set thread context of 3428	5108	svchost.exe	54
PID 2848 set thread context of 3428	2848	raserver.exe	54

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	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DF20230706CFW07L.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
5108	svchost.exe
5108	svchost.exe
5108	svchost.exe
5108	svchost.exe
5108	svchost.exe
5108	svchost.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe
2848	raserver.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
3316	DF20230706CFW07L.exe
3316	DF20230706CFW07L.exe
5108	svchost.exe
5108	svchost.exe
5108	svchost.exe
5108	svchost.exe
2848	raserver.exe
2848	raserver.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	5108	svchost.exe
Token: SeDebugPrivilege	2848	raserver.exe
Token: SeShutdownPrivilege	3428	Explorer.EXE
Token: SeCreatePagefilePrivilege	3428	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3316 wrote to memory of 5108	3316	DF20230706CFW07L.exe	89
PID 3316 wrote to memory of 5108	3316	DF20230706CFW07L.exe	89
PID 3316 wrote to memory of 5108	3316	DF20230706CFW07L.exe	89
PID 3316 wrote to memory of 5108	3316	DF20230706CFW07L.exe	89
PID 3428 wrote to memory of 2848	3428	Explorer.EXE	93
PID 3428 wrote to memory of 2848	3428	Explorer.EXE	93
PID 3428 wrote to memory of 2848	3428	Explorer.EXE	93
PID 2848 wrote to memory of 3508	2848	raserver.exe	96
PID 2848 wrote to memory of 3508	2848	raserver.exe	96
PID 2848 wrote to memory of 3508	2848	raserver.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3428
- C:\Users\Admin\AppData\Local\Temp\DF20230706CFW07L.exe
  "C:\Users\Admin\AppData\Local\Temp\DF20230706CFW07L.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:3316
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\DF20230706CFW07L.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:5108
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:2848
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3508

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3988,i,5469445176230119590,7931734017267321834,262144 --variations-seed-version --mojo-platform-channel-handle=3956 /prefetch:8
1⤵
PID:5096

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/2848-15-0x00000000009E0000-0x00000000009FF000-memory.dmp

Filesize
124KB

Download
memory/2848-18-0x0000000000D30000-0x0000000000D5F000-memory.dmp

Filesize
188KB

Download
memory/2848-17-0x00000000009E0000-0x00000000009FF000-memory.dmp

Filesize
124KB

Download
memory/3316-2-0x00000000042F0000-0x00000000046F0000-memory.dmp

Filesize
4.0MB

Download
memory/3428-25-0x00000000047F0000-0x00000000048A1000-memory.dmp

Filesize
708KB

Download
memory/3428-24-0x00000000047F0000-0x00000000048A1000-memory.dmp

Filesize
708KB

Download
memory/3428-22-0x00000000047F0000-0x00000000048A1000-memory.dmp

Filesize
708KB

Download
memory/3428-9-0x00000000089A0000-0x0000000008ADB000-memory.dmp

Filesize
1.2MB

Download
memory/3428-13-0x0000000008AE0000-0x0000000008C00000-memory.dmp

Filesize
1.1MB

Download
memory/3428-19-0x0000000008AE0000-0x0000000008C00000-memory.dmp

Filesize
1.1MB

Download
memory/3428-14-0x00000000089A0000-0x0000000008ADB000-memory.dmp

Filesize
1.2MB

Download
memory/5108-8-0x0000000000F00000-0x0000000000F15000-memory.dmp

Filesize
84KB

Download
memory/5108-11-0x00000000004B0000-0x00000000004DF000-memory.dmp

Filesize
188KB

Download
memory/5108-12-0x0000000000F70000-0x0000000000F85000-memory.dmp

Filesize
84KB

Download
memory/5108-7-0x00000000004B0000-0x00000000004DF000-memory.dmp

Filesize
188KB

Download
memory/5108-6-0x0000000001000000-0x000000000134A000-memory.dmp

Filesize
3.3MB

Download
memory/5108-3-0x00000000004B0000-0x00000000004DF000-memory.dmp

Filesize
188KB

Download