formbook | 51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523

General

Target

51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe
Size

735KB
MD5

0bf812793c1323caa133810d40983cf3
SHA1

e7e27170e59e951cb025fe6e4c07d61a2575a1de
SHA256

51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523
SHA512

78c272f76c5790a6533e3e977adf79d113670f2861fbd2fe55ade458e37604ab4ce93fe831ee31fdd500bff8b8763bf7c2a46e4cc6e9b600623393c860ea5b92
SSDEEP

12288:08gWXV7OLzM4Qd5611jY772u41d11hJeZ9PAYg4aYwmuugLpj85nxrNMZ3qtDfFR:pOZMeTPnJeLPngzB0glj89xrNZZnLn

Score

10^/10

formbook 3nop discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

3nop

Decoy

subur88wap.sbs

tyai1.top

skillbeast.site

kcclassiccars.net

lghomes.net

eijanno.cyou

work-in-usa-60100.bond

268chill.store

bharatwin.biz

cakjitu01.xyz

misafert.xyz

hiretemp.net

lvekz-onearmed.top

amanda-manopo.info

seo-companies22.online

casinowalletth.net

maynrson.monster

bewizi.com

thedronetechhub.shop

car-insurance-93947.bond

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/2828-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2828-22-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2720-25-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2888	powershell.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2440 set thread context of 2828	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	34
PID 2828 set thread context of 1360	2828	RegSvcs.exe	21
PID 2828 set thread context of 1360	2828	RegSvcs.exe	21
PID 2720 set thread context of 1360	2720	chkdsk.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 5 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	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2052	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe
2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe
2828	RegSvcs.exe
2828	RegSvcs.exe
2888	powershell.exe
2828	RegSvcs.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe
2720	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2828	RegSvcs.exe
2828	RegSvcs.exe
2828	RegSvcs.exe
2828	RegSvcs.exe
2720	chkdsk.exe
2720	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe
Token: SeDebugPrivilege	2828	RegSvcs.exe
Token: SeDebugPrivilege	2888	powershell.exe
Token: SeDebugPrivilege	2720	chkdsk.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 2888	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	30
PID 2440 wrote to memory of 2888	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	30
PID 2440 wrote to memory of 2888	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	30
PID 2440 wrote to memory of 2888	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	30
PID 2440 wrote to memory of 2052	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	31
PID 2440 wrote to memory of 2052	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	31
PID 2440 wrote to memory of 2052	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	31
PID 2440 wrote to memory of 2052	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	31
PID 2440 wrote to memory of 2828	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	34
PID 2440 wrote to memory of 2828	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	34
PID 2440 wrote to memory of 2828	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	34
PID 2440 wrote to memory of 2828	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	34
PID 2440 wrote to memory of 2828	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	34
PID 2440 wrote to memory of 2828	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	34
PID 2440 wrote to memory of 2828	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	34
PID 2440 wrote to memory of 2828	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	34
PID 2440 wrote to memory of 2828	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	34
PID 2440 wrote to memory of 2828	2440	51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe	34
PID 1360 wrote to memory of 2720	1360	Explorer.EXE	35
PID 1360 wrote to memory of 2720	1360	Explorer.EXE	35
PID 1360 wrote to memory of 2720	1360	Explorer.EXE	35
PID 1360 wrote to memory of 2720	1360	Explorer.EXE	35
PID 2720 wrote to memory of 2752	2720	chkdsk.exe	36
PID 2720 wrote to memory of 2752	2720	chkdsk.exe	36
PID 2720 wrote to memory of 2752	2720	chkdsk.exe	36
PID 2720 wrote to memory of 2752	2720	chkdsk.exe	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1360
- C:\Users\Admin\AppData\Local\Temp\51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe
  "C:\Users\Admin\AppData\Local\Temp\51d5fbecdf7459fc37ab296b97245a020f31cfd4ac1073f3fb2947a3710a8523.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2440
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VazQLq.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2888
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VazQLq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB700.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2052
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2828
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2720
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB700.tmp

Filesize
1KB

MD5
efe51c423c3b3822533293e05988d919

SHA1
c17cf730c88b9659bd8a124ee16c6896298d41fe

SHA256
f81a1f713a39f57e81be56ca8518aaff76dd6066a6c0ddc33bf37ef8541635d9

SHA512
989fe73464e2c74f018f951efb72af34dac594e705fc4f69590cc40c804527c761f88d55eb95e849dc76f4ed7289d0dd8620584412899a669325005639aee378

Download Submit
memory/1360-23-0x0000000007520000-0x00000000075F6000-memory.dmp

Filesize
856KB

Download
memory/2440-20-0x00000000741F0000-0x00000000748DE000-memory.dmp

Filesize
6.9MB

Download
memory/2440-0-0x00000000741FE000-0x00000000741FF000-memory.dmp

Filesize
4KB

Download
memory/2440-4-0x00000000741FE000-0x00000000741FF000-memory.dmp

Filesize
4KB

Download
memory/2440-5-0x00000000741F0000-0x00000000748DE000-memory.dmp

Filesize
6.9MB

Download
memory/2440-6-0x00000000003E0000-0x0000000000458000-memory.dmp

Filesize
480KB

Download
memory/2440-2-0x00000000741F0000-0x00000000748DE000-memory.dmp

Filesize
6.9MB

Download
memory/2440-1-0x00000000009C0000-0x0000000000A7E000-memory.dmp

Filesize
760KB

Download
memory/2440-3-0x0000000000340000-0x0000000000366000-memory.dmp

Filesize
152KB

Download
memory/2720-24-0x0000000000640000-0x0000000000647000-memory.dmp

Filesize
28KB

Download
memory/2720-25-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2828-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2828-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2828-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2828-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2828-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads