formbook | 17fec42e3ed8e31903adadfd26604ddb83cf27df49d250e75560742be6167be5

General

Target

90lh34776t.exe
Size

221KB
MD5

7729900697d95c9cb6d5bd73888cf13b
SHA1

43bb970f69404ff4c01427b99cfb669a4575d0cd
SHA256

b8f987a5099e1a1a220893763f00bcff9d84ed2dd49cb4a0ab8f5c595281e5ac
SHA512

d7cc1b6c5527da43c8cb4bbc04c356b2cb85849a847c342da6c85d610614096805f6946365f92252276b96a0bc9767c7979dfd358a6e20e752bd08d69850190f
SSDEEP

6144:wBlL/LrAY7sjzeUc1/8Lan+V6KqjWw04DzlBX:Cp/g/2bna6Kn4nlh

Score

10^/10

formbook lt0h discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

lt0h

Decoy

originalindigofurniture.co.uk

fl6588.com

acecademy.com

yaerofinerindalnalising.com

mendilovic.online

rishenght.com

famlees.com

myhomeofficemarket.com

bouquetarabia.com

chrisbani.com

freebandslegally.com

hernandezinsurancegroup.net

slicedandfresh.com

apnathikanas.com

chadhatesyou.com

ansilsas.com

in3development.com

nitiren.net

peespn.com

valengz.com

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2892-11-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2892-13-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2892-17-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2916	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
2980	90lh34776t.exe
2980	90lh34776t.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2980 set thread context of 2892	2980	90lh34776t.exe	30
PID 2892 set thread context of 1184	2892	90lh34776t.exe	21
PID 2892 set thread context of 1184	2892	90lh34776t.exe	21
PID 2196 set thread context of 1184	2196	colorcpl.exe	21

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	90lh34776t.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	colorcpl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2892	90lh34776t.exe
2892	90lh34776t.exe
2892	90lh34776t.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe
2196	colorcpl.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2980	90lh34776t.exe
2892	90lh34776t.exe
2892	90lh34776t.exe
2892	90lh34776t.exe
2892	90lh34776t.exe
2196	colorcpl.exe
2196	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2892	90lh34776t.exe
Token: SeDebugPrivilege	2196	colorcpl.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 2892	2980	90lh34776t.exe	30
PID 2980 wrote to memory of 2892	2980	90lh34776t.exe	30
PID 2980 wrote to memory of 2892	2980	90lh34776t.exe	30
PID 2980 wrote to memory of 2892	2980	90lh34776t.exe	30
PID 2980 wrote to memory of 2892	2980	90lh34776t.exe	30
PID 1184 wrote to memory of 2196	1184	Explorer.EXE	31
PID 1184 wrote to memory of 2196	1184	Explorer.EXE	31
PID 1184 wrote to memory of 2196	1184	Explorer.EXE	31
PID 1184 wrote to memory of 2196	1184	Explorer.EXE	31
PID 2196 wrote to memory of 2916	2196	colorcpl.exe	32
PID 2196 wrote to memory of 2916	2196	colorcpl.exe	32
PID 2196 wrote to memory of 2916	2196	colorcpl.exe	32
PID 2196 wrote to memory of 2916	2196	colorcpl.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Users\Admin\AppData\Local\Temp\90lh34776t.exe
  "C:\Users\Admin\AppData\Local\Temp\90lh34776t.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2980
- - C:\Users\Admin\AppData\Local\Temp\90lh34776t.exe
    "C:\Users\Admin\AppData\Local\Temp\90lh34776t.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2892
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.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:2196
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\90lh34776t.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsj800A.tmp\System.dll

Filesize
10KB

MD5
56a321bd011112ec5d8a32b2f6fd3231

SHA1
df20e3a35a1636de64df5290ae5e4e7572447f78

SHA256
bb6df93369b498eaa638b0bcdc4bb89f45e9b02ca12d28bcedf4629ea7f5e0f1

SHA512
5354890cbc53ce51081a78c64ba9c4c8c4dc9e01141798c1e916e19c5776dac7c82989fad0f08c73e81aaba332dad81205f90d0663119af45550b97b338b9cc3

Download Submit
memory/1184-14-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1184-15-0x0000000004B70000-0x0000000004CB8000-memory.dmp

Filesize
1.3MB

Download
memory/1184-18-0x00000000051E0000-0x0000000005305000-memory.dmp

Filesize
1.1MB

Download
memory/1184-19-0x0000000004B70000-0x0000000004CB8000-memory.dmp

Filesize
1.3MB

Download
memory/1184-24-0x00000000051E0000-0x0000000005305000-memory.dmp

Filesize
1.1MB

Download
memory/2196-22-0x00000000009F0000-0x0000000000A08000-memory.dmp

Filesize
96KB

Download
memory/2196-23-0x00000000009F0000-0x0000000000A08000-memory.dmp

Filesize
96KB

Download
memory/2892-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2892-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2892-17-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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