formbook | b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
02-08-2024 02:17

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General

Target

b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe
Size

620KB
MD5

035c35bf6a68763ba391504a7c6a4993
SHA1

2fb903b75098baf7d39fdc3db68cfb35e03100e8
SHA256

b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d
SHA512

4c6cbdcfed65bdcf1c37f93d02f6cf0ae839a3ac6016b594ff690a1d24615ba9abdeeb651734bb4b237c8cc9045e91c5ac25e1ed30b7762abe62a93a7170f049
SSDEEP

12288:j4lz4cX9/R3FcFCstoAsfqYFPV7PGuj9zcU/Nk8emr1y6m7H2ph1hRvjndCrkR:jcz4c7eFCseACJhzcU/Nkarub2fJvjdF

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
behavioral2/memory/1124-18-0x0000000000400000-0x000000000042F000-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
4456	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000\Control Panel\International\Geo\Nation	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2184 set thread context of 1124	2184	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe	90

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	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.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
5068	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1124	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe
1124	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe
4456	powershell.exe
4456	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4456	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 4456	2184	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe	86
PID 2184 wrote to memory of 4456	2184	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe	86
PID 2184 wrote to memory of 4456	2184	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe	86
PID 2184 wrote to memory of 5068	2184	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe	88
PID 2184 wrote to memory of 5068	2184	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe	88
PID 2184 wrote to memory of 5068	2184	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe	88
PID 2184 wrote to memory of 1124	2184	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe	90
PID 2184 wrote to memory of 1124	2184	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe	90
PID 2184 wrote to memory of 1124	2184	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe	90
PID 2184 wrote to memory of 1124	2184	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe	90
PID 2184 wrote to memory of 1124	2184	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe	90
PID 2184 wrote to memory of 1124	2184	b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe	90

C:\Users\Admin\AppData\Local\Temp\b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe
"C:\Users\Admin\AppData\Local\Temp\b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DUsLon.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4456
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DUsLon" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC1AA.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:5068
- C:\Users\Admin\AppData\Local\Temp\b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe
  "C:\Users\Admin\AppData\Local\Temp\b731e1e07da1ab601c2773e2124f60e482f30f81bf2d1d64c3363c5d1f4ec08d.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1124

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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\__PSScriptPolicyTest_53vw4nbv.uln.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC1AA.tmp

Filesize
1KB

MD5
68bf144966b55a4531a9d61df199d0cd

SHA1
d8497b335fe7475f7d29bfc549ac5408fa247cfa

SHA256
e335d9112b725ca089e4e2bc170a6229ff2d091f07277f2fbde355177139ef6b

SHA512
c24ba602e23c13576267a327922093216343a040bc3f65dca11c92358be676ec750b2b9b1f7d9a0c9c9ba85e8871356a68fd521f9570ee0640a1f6811cac9476

Download Submit
memory/1124-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1124-23-0x0000000001100000-0x000000000144A000-memory.dmp

Filesize
3.3MB

Download
memory/2184-6-0x0000000005430000-0x0000000005446000-memory.dmp

Filesize
88KB

Download
memory/2184-5-0x0000000005190000-0x000000000519A000-memory.dmp

Filesize
40KB

Download
memory/2184-21-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/2184-7-0x0000000008600000-0x000000000860E000-memory.dmp

Filesize
56KB

Download
memory/2184-8-0x0000000008620000-0x0000000008696000-memory.dmp

Filesize
472KB

Download
memory/2184-9-0x00000000088E0000-0x000000000897C000-memory.dmp

Filesize
624KB

Download
memory/2184-4-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/2184-3-0x00000000051D0000-0x0000000005262000-memory.dmp

Filesize
584KB

Download
memory/2184-0-0x00000000749AE000-0x00000000749AF000-memory.dmp

Filesize
4KB

Download
memory/2184-2-0x0000000005780000-0x0000000005D24000-memory.dmp

Filesize
5.6MB

Download
memory/2184-1-0x0000000000700000-0x000000000079E000-memory.dmp

Filesize
632KB

Download
memory/4456-26-0x00000000050A0000-0x0000000005106000-memory.dmp

Filesize
408KB

Download
memory/4456-41-0x0000000071260000-0x00000000712AC000-memory.dmp

Filesize
304KB

Download
memory/4456-17-0x0000000005180000-0x00000000057A8000-memory.dmp

Filesize
6.2MB

Download
memory/4456-22-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/4456-25-0x0000000005030000-0x0000000005096000-memory.dmp

Filesize
408KB

Download
memory/4456-16-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/4456-24-0x0000000004F90000-0x0000000004FB2000-memory.dmp

Filesize
136KB

Download
memory/4456-14-0x0000000002630000-0x0000000002666000-memory.dmp

Filesize
216KB

Download
memory/4456-36-0x0000000005B60000-0x0000000005EB4000-memory.dmp

Filesize
3.3MB

Download
memory/4456-37-0x0000000005FC0000-0x0000000005FDE000-memory.dmp

Filesize
120KB

Download
memory/4456-38-0x0000000006070000-0x00000000060BC000-memory.dmp

Filesize
304KB

Download
memory/4456-39-0x000000007F680000-0x000000007F690000-memory.dmp

Filesize
64KB

Download
memory/4456-40-0x0000000006580000-0x00000000065B2000-memory.dmp

Filesize
200KB

Download
memory/4456-20-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/4456-52-0x00000000026E0000-0x00000000026F0000-memory.dmp

Filesize
64KB

Download
memory/4456-51-0x00000000065C0000-0x00000000065DE000-memory.dmp

Filesize
120KB

Download
memory/4456-53-0x00000000026E0000-0x00000000026F0000-memory.dmp

Filesize
64KB

Download
memory/4456-54-0x00000000071E0000-0x0000000007283000-memory.dmp

Filesize
652KB

Download
memory/4456-55-0x0000000007930000-0x0000000007FAA000-memory.dmp

Filesize
6.5MB

Download
memory/4456-56-0x00000000072F0000-0x000000000730A000-memory.dmp

Filesize
104KB

Download
memory/4456-57-0x0000000007360000-0x000000000736A000-memory.dmp

Filesize
40KB

Download
memory/4456-58-0x0000000007570000-0x0000000007606000-memory.dmp

Filesize
600KB

Download
memory/4456-59-0x00000000074F0000-0x0000000007501000-memory.dmp

Filesize
68KB

Download
memory/4456-60-0x0000000007520000-0x000000000752E000-memory.dmp

Filesize
56KB

Download
memory/4456-61-0x0000000007530000-0x0000000007544000-memory.dmp

Filesize
80KB

Download
memory/4456-62-0x0000000007630000-0x000000000764A000-memory.dmp

Filesize
104KB

Download
memory/4456-63-0x0000000007610000-0x0000000007618000-memory.dmp

Filesize
32KB

Download
memory/4456-66-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download