formbook | 13af3ad92eb86c2c95c816ac526b97c78e0aaed46535c61bf363d768bb2cb0c9

Analysis

max time kernel
147s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 20:05

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General

Target

Fattura_855.pdf.exe
Size

240KB
MD5

068b6fd352736535c7d967673914c66a
SHA1

ae5b7ac0e73123f5b2b31e9a3b1061c9985e70bf
SHA256

df52a26061f50bed16f94038cfedb42e1b492b9ce865daabd7ce15db4db9b8a3
SHA512

0b3eff80a6cba89895c554206bb64246bc090a04015eae579e9624f71a72e750fa0d9c352f1922731698223444b1b583c3aa075fc67fb00c32f6fe19b8bb585f
SSDEEP

6144:HNeZm//7la+u61CkduDVUWurQZt1czVpwS:HNl/zlnNCyAUW1KgS

Score

10^/10

formbook m0r9 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

m0r9

Decoy

neekoluldao.com

pandolam.com

homestore.website

inthemoart.com

plubmingcny.com

tsandjsdjproductions.com

bangkok-bars.com

theroganexperience.com

cisneros.media

cxaerfa.xyz

dalafea.online

eppsallen.com

kksm1.com

navega.site

coloradonews.info

rnhues3j.xyz

languageslibrary.com

metapharmacyphuket.net

invisiblelady.com

suculentaycactaceo3d.com

Signatures

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

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral7/memory/2536-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral7/memory/2536-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral7/memory/2536-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral7/memory/2296-28-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

Processes:

gocbcx.exegocbcx.exe

pid process

2084 gocbcx.exe
2536 gocbcx.exe
Loads dropped DLL 3 IoCs

Processes:

Fattura_855.pdf.exegocbcx.exe

pid process

2348 Fattura_855.pdf.exe
2348 Fattura_855.pdf.exe
2084 gocbcx.exe

pid	process
2084	gocbcx.exe
2536	gocbcx.exe

pid	process
2348	Fattura_855.pdf.exe
2348	Fattura_855.pdf.exe
2084	gocbcx.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

gocbcx.exegocbcx.exehelp.exe

description	pid	process	target process
PID 2084 set thread context of 2536	2084	gocbcx.exe	gocbcx.exe
PID 2536 set thread context of 1148	2536	gocbcx.exe	Explorer.EXE
PID 2536 set thread context of 1148	2536	gocbcx.exe	Explorer.EXE
PID 2296 set thread context of 1148	2296	help.exe	Explorer.EXE

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 4 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

Processes:

Fattura_855.pdf.exegocbcx.exehelp.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Fattura_855.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gocbcx.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 31 IoCs

Processes:

gocbcx.exehelp.exe

pid	process
2536	gocbcx.exe
2536	gocbcx.exe
2536	gocbcx.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

gocbcx.exehelp.exe

pid process

2536 gocbcx.exe
2536 gocbcx.exe
2536 gocbcx.exe
2536 gocbcx.exe
2296 help.exe
2296 help.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

gocbcx.exehelp.exe

description pid process

Token: SeDebugPrivilege 2536 gocbcx.exe
Token: SeDebugPrivilege 2296 help.exe

description	pid	process
Token: SeDebugPrivilege	2536	gocbcx.exe
Token: SeDebugPrivilege	2296	help.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

Fattura_855.pdf.exegocbcx.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 2348 wrote to memory of 2084	2348	Fattura_855.pdf.exe	gocbcx.exe
PID 2348 wrote to memory of 2084	2348	Fattura_855.pdf.exe	gocbcx.exe
PID 2348 wrote to memory of 2084	2348	Fattura_855.pdf.exe	gocbcx.exe
PID 2348 wrote to memory of 2084	2348	Fattura_855.pdf.exe	gocbcx.exe
PID 2084 wrote to memory of 2536	2084	gocbcx.exe	gocbcx.exe
PID 2084 wrote to memory of 2536	2084	gocbcx.exe	gocbcx.exe
PID 2084 wrote to memory of 2536	2084	gocbcx.exe	gocbcx.exe
PID 2084 wrote to memory of 2536	2084	gocbcx.exe	gocbcx.exe
PID 2084 wrote to memory of 2536	2084	gocbcx.exe	gocbcx.exe
PID 2084 wrote to memory of 2536	2084	gocbcx.exe	gocbcx.exe
PID 2084 wrote to memory of 2536	2084	gocbcx.exe	gocbcx.exe
PID 1148 wrote to memory of 2296	1148	Explorer.EXE	help.exe
PID 1148 wrote to memory of 2296	1148	Explorer.EXE	help.exe
PID 1148 wrote to memory of 2296	1148	Explorer.EXE	help.exe
PID 1148 wrote to memory of 2296	1148	Explorer.EXE	help.exe
PID 2296 wrote to memory of 2980	2296	help.exe	cmd.exe
PID 2296 wrote to memory of 2980	2296	help.exe	cmd.exe
PID 2296 wrote to memory of 2980	2296	help.exe	cmd.exe
PID 2296 wrote to memory of 2980	2296	help.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1148
- C:\Users\Admin\AppData\Local\Temp\Fattura_855.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Fattura_855.pdf.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2348
- - C:\Users\Admin\AppData\Local\Temp\gocbcx.exe
    C:\Users\Admin\AppData\Local\Temp\gocbcx.exe C:\Users\Admin\AppData\Local\Temp\rnukeqm
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2084
  - - C:\Users\Admin\AppData\Local\Temp\gocbcx.exe
      C:\Users\Admin\AppData\Local\Temp\gocbcx.exe C:\Users\Admin\AppData\Local\Temp\rnukeqm
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2536
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1972
- 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:2296
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\gocbcx.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2980

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

C:\Users\Admin\AppData\Local\Temp\gocbcx.exe

Filesize
64KB

MD5
6c310e309e2ddfe8ae53e95c525c9e52

SHA1
694861bf8fbddafc5673853c8f7c910a2b60a1b7

SHA256
ffef20b2c9b8d9cdd4f471718ef688a8bd4834b6481978574b877ab14a91228d

SHA512
8030a4b7d8d225699d4c9d71cf015dbb90895266e9006c5fee1ba9ce56ac871f1f9477ee4ccf6c62109ef23f0321d9590a3b286156d5b57e30bbe2f9d302a931

Download Submit
C:\Users\Admin\AppData\Local\Temp\ncssrlmzyd

Filesize
184KB

MD5
02475297a79138c050381b19f13cbb88

SHA1
efeb9032605484fdea6478b224afe59af46f29a3

SHA256
a3439fba9220dbfe1fb05f3dfa24aab3e7f72071ff1f16bae20fd58c227e4b7a

SHA512
35e9e844e33c1ac1ad3ce9e035ba2ff6302e84941bcd300011c758fa6eb917292a2db480a3d1592e6a275b84621708b08109579599781c2fd28fdba8f7e25d55

Download Submit
C:\Users\Admin\AppData\Local\Temp\rnukeqm

Filesize
5KB

MD5
8d73805cc88e7c5fb975ea51d44509c0

SHA1
7b3615aeb8d8a6a049dd59d2c6883c2d60c689b8

SHA256
83bd692b6115ceeb84745dac471dc333377ce29178894d0493e0d2a6acd975b4

SHA512
e50598247e565bb3d509189c107f288ee07d163913d38a2e9ebf2f5bdaed969c49c027c96e0afab8a00cefc2c4cf4e712d99b853a2b3af36694ff1784b75dff3

Download Submit
memory/1148-19-0x0000000004470000-0x0000000004571000-memory.dmp

Filesize
1.0MB

Download
memory/1148-22-0x0000000004470000-0x0000000004571000-memory.dmp

Filesize
1.0MB

Download
memory/1148-23-0x00000000051A0000-0x000000000527E000-memory.dmp

Filesize
888KB

Download
memory/1148-29-0x00000000051A0000-0x000000000527E000-memory.dmp

Filesize
888KB

Download
memory/2084-11-0x0000000000220000-0x0000000000222000-memory.dmp

Filesize
8KB

Download
memory/2296-27-0x0000000000BA0000-0x0000000000BA6000-memory.dmp

Filesize
24KB

Download
memory/2296-26-0x0000000000BA0000-0x0000000000BA6000-memory.dmp

Filesize
24KB

Download
memory/2296-28-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2536-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2536-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2536-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download