formbook | f100b637fa8bc6f97f3bac5fe25cf5539a93c83795f0dfe22c8136282dd866a2

Analysis

max time kernel
96s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-09-2024 07:08

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General

Target

9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe
Size

519KB
MD5

f55f34179b9927413e1b8e03428219b5
SHA1

6794de0e21b2dcf6844e6c27d7391105ee9bf1ef
SHA256

9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33
SHA512

079e23fd13c75923c1510b35b8c8559d774982a5ce991483bcb6d2e0a8f6b0870bd5eca57926acedbdfccd71249148f26e76b7fb353673c2076678f60a20570f
SSDEEP

6144:2i5IN9bX6qUhFFGzaX/yuWUJeLC5MiTMXp6LNXlTEGtxhezzK3iU8dEHK:2i5ID6qUbFhyAXocLNNVtuXEHK

Score

10^/10

formbook s6tn discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

s6tn

Decoy

ya-volna.com

nakimura.online

buildtheyamato.com

carecard.xyz

orthozayn.com

sitd.xyz

garu.club

alfainfocom.com

floridalacrossecamps.com

banytus.xyz

dogodipiskot.quest

ljlsaf.com

shaheenricemills.com

cuevieujni.info

chrisandkcollection.com

sunadokei.website

hoidotsbirky.quest

creditassociatesllc.com

amazonhrjobs.com

the-luggage-dropp-off.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/3736-59-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Newapp.exe	PowerShell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Newapp.exe	PowerShell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 404 set thread context of 3736	404	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	96

System Location Discovery: System Language Discovery 1 TTPs 2 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	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PowerShell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4312	PowerShell.exe
4312	PowerShell.exe
3736	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe
3736	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4312	PowerShell.exe
Token: SeDebugPrivilege	404	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 404 wrote to memory of 4312	404	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	85
PID 404 wrote to memory of 4312	404	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	85
PID 404 wrote to memory of 4312	404	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	85
PID 404 wrote to memory of 3736	404	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	96
PID 404 wrote to memory of 3736	404	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	96
PID 404 wrote to memory of 3736	404	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	96
PID 404 wrote to memory of 3736	404	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	96
PID 404 wrote to memory of 3736	404	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	96
PID 404 wrote to memory of 3736	404	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	96

C:\Users\Admin\AppData\Local\Temp\9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe
"C:\Users\Admin\AppData\Local\Temp\9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:404
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\PowerShell.exe
  "PowerShell" copy-item 'C:\Users\Admin\AppData\Local\Temp\9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Newapp.exe'
  2⤵
  - Drops startup file
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4312
- C:\Users\Admin\AppData\Local\Temp\9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe
  "C:\Users\Admin\AppData\Local\Temp\9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_44ahrizz.tm0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/404-44-0x0000000005920000-0x0000000005935000-memory.dmp

Filesize
84KB

Download
memory/404-46-0x0000000005920000-0x0000000005935000-memory.dmp

Filesize
84KB

Download
memory/404-3-0x0000000006020000-0x00000000065C4000-memory.dmp

Filesize
5.6MB

Download
memory/404-58-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/404-60-0x0000000005D20000-0x0000000005D21000-memory.dmp

Filesize
4KB

Download
memory/404-31-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/404-36-0x0000000005920000-0x0000000005935000-memory.dmp

Filesize
84KB

Download
memory/404-38-0x0000000005920000-0x0000000005935000-memory.dmp

Filesize
84KB

Download
memory/404-42-0x0000000005920000-0x0000000005935000-memory.dmp

Filesize
84KB

Download
memory/404-0-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/404-2-0x0000000005950000-0x00000000059EC000-memory.dmp

Filesize
624KB

Download
memory/404-1-0x0000000000F40000-0x0000000000FC8000-memory.dmp

Filesize
544KB

Download
memory/404-48-0x0000000005920000-0x0000000005935000-memory.dmp

Filesize
84KB

Download
memory/404-32-0x0000000005920000-0x000000000593C000-memory.dmp

Filesize
112KB

Download
memory/404-50-0x0000000005920000-0x0000000005935000-memory.dmp

Filesize
84KB

Download
memory/404-52-0x0000000005920000-0x0000000005935000-memory.dmp

Filesize
84KB

Download
memory/404-54-0x0000000005920000-0x0000000005935000-memory.dmp

Filesize
84KB

Download
memory/404-56-0x0000000005920000-0x0000000005935000-memory.dmp

Filesize
84KB

Download
memory/404-62-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/404-34-0x0000000005920000-0x0000000005935000-memory.dmp

Filesize
84KB

Download
memory/404-40-0x0000000005920000-0x0000000005935000-memory.dmp

Filesize
84KB

Download
memory/404-33-0x0000000005920000-0x0000000005935000-memory.dmp

Filesize
84KB

Download
memory/3736-63-0x00000000017B0000-0x0000000001AFA000-memory.dmp

Filesize
3.3MB

Download
memory/3736-59-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4312-23-0x00000000064D0000-0x000000000651C000-memory.dmp

Filesize
304KB

Download
memory/4312-26-0x0000000006760000-0x0000000006782000-memory.dmp

Filesize
136KB

Download
memory/4312-22-0x0000000006220000-0x000000000623E000-memory.dmp

Filesize
120KB

Download
memory/4312-21-0x0000000005C60000-0x0000000005FB4000-memory.dmp

Filesize
3.3MB

Download
memory/4312-11-0x0000000005AF0000-0x0000000005B56000-memory.dmp

Filesize
408KB

Download
memory/4312-7-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4312-25-0x0000000006710000-0x000000000672A000-memory.dmp

Filesize
104KB

Download
memory/4312-24-0x00000000067A0000-0x0000000006836000-memory.dmp

Filesize
600KB

Download
memory/4312-8-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4312-5-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4312-9-0x0000000005280000-0x00000000052A2000-memory.dmp

Filesize
136KB

Download
memory/4312-6-0x0000000005320000-0x0000000005948000-memory.dmp

Filesize
6.2MB

Download
memory/4312-4-0x0000000002940000-0x0000000002976000-memory.dmp

Filesize
216KB

Download
memory/4312-30-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4312-10-0x0000000005950000-0x00000000059B6000-memory.dmp

Filesize
408KB

Download