formbook | 45bac0cd4b709400f6801f0b6dfaa5eba1d6125d3a859ade0cf2a1e53b637746

General

Target

MalwareBazaar.exe
Size

637KB
MD5

536f359f5908b1a9926b6337c3e520d4
SHA1

d8b7aa1367b6508e1e4ee99c5e0ba9d15b097219
SHA256

45bac0cd4b709400f6801f0b6dfaa5eba1d6125d3a859ade0cf2a1e53b637746
SHA512

dd1c82dc5779f28c33fd8d82b44a9000be1643213c1bd0d68968697e8ed24578f713724300ee73927efe058166dd00344f7e7057a44b2db6cc69efd86f8bdf14
SSDEEP

12288:YvgQpjndCDRIswmfdJ8hWUxE/350N2mDuPZgC5uvqpkqZiBXdQdkR:YvvjdCDRLH1UxE/35tmDuPl5uvRqZitT

Score

10^/10

formbook ss24 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ss24

Decoy

agingwellhc.com

unikbetanggur.autos

eb2024yl.top

ja380.xyz

thehalcyon.studio

maudsoogrim.com

esteler10.click

mewtcp.xyz

www-zjbf1.club

kucinglucu.online

lunwencheck.com

65597.photos

erbxeu358h.top

startable.online

yousend.xyz

csharksg.com

centricoatings.com

ntruhslearn.xyz

achabakra.xyz

zuntool.com

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2552-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/3008-23-0x0000000000070000-0x000000000009F000-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
2824	powershell.exe

Deletes itself 1 IoCs

pid	Process
344	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2648 set thread context of 2552	2648	MalwareBazaar.exe	34
PID 2552 set thread context of 1228	2552	MalwareBazaar.exe	21
PID 3008 set thread context of 1228	3008	wscript.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	MalwareBazaar.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	wscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
2808	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
2552	MalwareBazaar.exe
2552	MalwareBazaar.exe
2824	powershell.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe
3008	wscript.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2552	MalwareBazaar.exe
2552	MalwareBazaar.exe
2552	MalwareBazaar.exe
3008	wscript.exe
3008	wscript.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2552	MalwareBazaar.exe
Token: SeDebugPrivilege	2824	powershell.exe
Token: SeDebugPrivilege	3008	wscript.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 2824	2648	MalwareBazaar.exe	30
PID 2648 wrote to memory of 2824	2648	MalwareBazaar.exe	30
PID 2648 wrote to memory of 2824	2648	MalwareBazaar.exe	30
PID 2648 wrote to memory of 2824	2648	MalwareBazaar.exe	30
PID 2648 wrote to memory of 2808	2648	MalwareBazaar.exe	32
PID 2648 wrote to memory of 2808	2648	MalwareBazaar.exe	32
PID 2648 wrote to memory of 2808	2648	MalwareBazaar.exe	32
PID 2648 wrote to memory of 2808	2648	MalwareBazaar.exe	32
PID 2648 wrote to memory of 2552	2648	MalwareBazaar.exe	34
PID 2648 wrote to memory of 2552	2648	MalwareBazaar.exe	34
PID 2648 wrote to memory of 2552	2648	MalwareBazaar.exe	34
PID 2648 wrote to memory of 2552	2648	MalwareBazaar.exe	34
PID 2648 wrote to memory of 2552	2648	MalwareBazaar.exe	34
PID 2648 wrote to memory of 2552	2648	MalwareBazaar.exe	34
PID 2648 wrote to memory of 2552	2648	MalwareBazaar.exe	34
PID 1228 wrote to memory of 3008	1228	Explorer.EXE	35
PID 1228 wrote to memory of 3008	1228	Explorer.EXE	35
PID 1228 wrote to memory of 3008	1228	Explorer.EXE	35
PID 1228 wrote to memory of 3008	1228	Explorer.EXE	35
PID 3008 wrote to memory of 344	3008	wscript.exe	36
PID 3008 wrote to memory of 344	3008	wscript.exe	36
PID 3008 wrote to memory of 344	3008	wscript.exe	36
PID 3008 wrote to memory of 344	3008	wscript.exe	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
  "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EqtGqZpPskFq.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2824
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EqtGqZpPskFq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7C41.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2808
- - C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2552
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.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:3008
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:344

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

System Information Discovery

1

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\tmp7C41.tmp

Filesize
1KB

MD5
04c6cb87b1b7fc139058eb410f990731

SHA1
6372601aac8fc7cd9c9e3fe656ba3b840b7e0174

SHA256
c4ca3f56d94b8ff1fe7ae0f0b827d1736f70991ade3d292e23df826bf3bd9e4f

SHA512
aaa62a8bd52bcdd689c019a06114f51ba19dca55ff6bcc5d03f09657e50b2d2c1da4477d07feed5ae634c0240ec9f8aa3e046bf9650584fa6eb919009fca0215

Download Submit
memory/1228-20-0x0000000003E40000-0x0000000004040000-memory.dmp

Filesize
2.0MB

Download
memory/2552-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2552-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2552-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2552-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2648-3-0x0000000000550000-0x0000000000566000-memory.dmp

Filesize
88KB

Download
memory/2648-4-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2648-5-0x00000000005D0000-0x0000000000646000-memory.dmp

Filesize
472KB

Download
memory/2648-2-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2648-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2648-1-0x0000000000A10000-0x0000000000AAE000-memory.dmp

Filesize
632KB

Download
memory/2648-21-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/3008-22-0x0000000000C00000-0x0000000000C26000-memory.dmp

Filesize
152KB

Download
memory/3008-23-0x0000000000070000-0x000000000009F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads