formbook | c162a926bc48d37970c76d3ae7afcb32881f8af7c2110b5dadcf6157c1ab3012

General

Target

821b0a63cb6261b46c7e269f35279510N.exe
Size

621KB
MD5

821b0a63cb6261b46c7e269f35279510
SHA1

04b02753ecdce9c5a1b49a06fffa17a88398b1af
SHA256

c162a926bc48d37970c76d3ae7afcb32881f8af7c2110b5dadcf6157c1ab3012
SHA512

854026466fa1f54041ab3f5e15ff00bad98370c13bf54965d171e8eab326fdddfe8717f9d44efcf5cabf691e5782465dbea2a7531c2d74f07c2c23e2ec03b818
SSDEEP

12288:m4Ox8GgReg2DlocqHPOK9pMSzFDOct8FwVxBa6QhmaTpr5Lka0KVjndCWkR:mdx8XR12uLvOKdzFZ8FwD86Spr5Lh/Vg

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 1 IoCs

rat

resource	yara_rule
behavioral1/memory/2792-18-0x0000000000400000-0x000000000042F000-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
2444	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2568 set thread context of 2792	2568	821b0a63cb6261b46c7e269f35279510N.exe	35

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	821b0a63cb6261b46c7e269f35279510N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2520	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2792	821b0a63cb6261b46c7e269f35279510N.exe
2444	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2444	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 2444	2568	821b0a63cb6261b46c7e269f35279510N.exe	31
PID 2568 wrote to memory of 2444	2568	821b0a63cb6261b46c7e269f35279510N.exe	31
PID 2568 wrote to memory of 2444	2568	821b0a63cb6261b46c7e269f35279510N.exe	31
PID 2568 wrote to memory of 2444	2568	821b0a63cb6261b46c7e269f35279510N.exe	31
PID 2568 wrote to memory of 2520	2568	821b0a63cb6261b46c7e269f35279510N.exe	32
PID 2568 wrote to memory of 2520	2568	821b0a63cb6261b46c7e269f35279510N.exe	32
PID 2568 wrote to memory of 2520	2568	821b0a63cb6261b46c7e269f35279510N.exe	32
PID 2568 wrote to memory of 2520	2568	821b0a63cb6261b46c7e269f35279510N.exe	32
PID 2568 wrote to memory of 2792	2568	821b0a63cb6261b46c7e269f35279510N.exe	35
PID 2568 wrote to memory of 2792	2568	821b0a63cb6261b46c7e269f35279510N.exe	35
PID 2568 wrote to memory of 2792	2568	821b0a63cb6261b46c7e269f35279510N.exe	35
PID 2568 wrote to memory of 2792	2568	821b0a63cb6261b46c7e269f35279510N.exe	35
PID 2568 wrote to memory of 2792	2568	821b0a63cb6261b46c7e269f35279510N.exe	35
PID 2568 wrote to memory of 2792	2568	821b0a63cb6261b46c7e269f35279510N.exe	35
PID 2568 wrote to memory of 2792	2568	821b0a63cb6261b46c7e269f35279510N.exe	35

C:\Users\Admin\AppData\Local\Temp\821b0a63cb6261b46c7e269f35279510N.exe
"C:\Users\Admin\AppData\Local\Temp\821b0a63cb6261b46c7e269f35279510N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\lmiGgFdjxkEHAd.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2444
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lmiGgFdjxkEHAd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFEAA.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2520
- C:\Users\Admin\AppData\Local\Temp\821b0a63cb6261b46c7e269f35279510N.exe
  "C:\Users\Admin\AppData\Local\Temp\821b0a63cb6261b46c7e269f35279510N.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2792

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\tmpFEAA.tmp

Filesize
1KB

MD5
a52582408d066f42177908f97b4d355c

SHA1
172bb9e6c4bf3982c91536401d1c4654202c98d3

SHA256
0c5084a9c1e6968a6990ab8ab4fd97b620f2938fb9d8a8665e27b61b73e01752

SHA512
a6a294b5c35919ce3d51354fd4602084338e15ff343b0656ed0eafd2c402c52c5c1b2408f4b23c7f5b4f277c7490dccd68b6e56b71203ecc0587cb9eff476488

Download Submit
memory/2568-0-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

Download
memory/2568-1-0x0000000001350000-0x00000000013EE000-memory.dmp

Filesize
632KB

Download
memory/2568-2-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2568-3-0x0000000000540000-0x0000000000556000-memory.dmp

Filesize
88KB

Download
memory/2568-4-0x0000000000800000-0x000000000080E000-memory.dmp

Filesize
56KB

Download
memory/2568-5-0x0000000001270000-0x00000000012E6000-memory.dmp

Filesize
472KB

Download
memory/2568-19-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2792-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2792-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2792-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2792-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads