Analysis
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max time kernel
686s -
max time network
683s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
13-12-2024 12:08
Static task
static1
Behavioral task
behavioral1
Sample
VBshqUbZtSxUibM.exe
Resource
win7-20240708-en
General
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Target
VBshqUbZtSxUibM.exe
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Size
605KB
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MD5
5219b5632bdd4d2bf00ca0405660a8cd
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SHA1
118b516281a7f9d07e23014611e3a0c5148ba2d6
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SHA256
6ce77c20aa2bb6bd48fe6255c91a4167fd81215ed4f4fec78c7387ef2247ae7b
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SHA512
998748303f20e88d0239cb7cf5fe8ce055c64c27085d129f174f10705bb9ce2cb838b59da7bed922fe069e03624dffb7306f482966e5bdb2df6481f6c7b6746f
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SSDEEP
12288:lkjnD7Oh7Ch0pUCxtrqeZx1Kufvye6vvc3JZgPeAp0:anD7OhM0nx1t/KufvyeOwgb
Malware Config
Extracted
formbook
4.1
sx01
r-salessolutions.xyz
jdh1.info
olar-panel-jobs-93084.bond
aebrasil.shop
oshua-xaaaa.buzz
xzkm.shop
nitedviplumbing.net
nnevateknoloji.xyz
rg-a.biz
indow-replacement-34091.bond
uyersagent3percent.net
ostbag.net
ibosolv.net
ahve.today
ophotshotjobs.today
emoreez.art
ift-chairs-94905.bond
okerdom-e.best
stagr.fun
irtyf-ingrancher.info
isviral.xyz
000rtp10.lat
tonomushotel.tech
26kd.shop
tarrypath.click
athroomremodeling-au.bond
ruthu.art
reatindiagame.net
oyroom.top
imusol.xyz
acuum-cleaner-36278.bond
psantennas.center
d1ot18.top
ybird.click
reenwitchery.shop
verythingtoys.net
j6t.xyz
surionatt.info
ronzon.tech
0240725pay.vip
ressfitting.info
itchen-deals-68231.bond
unvcxt.shop
hances.pro
ar-deals-15908.bond
xana.shop
onfirme-5.online
augdfgi.pro
romocionesguajaraz.info
etry.tech
bckorea.net
zcase.online
kksoyuz.online
sychology-degree-49198.bond
resdai.xyz
-bot-pasha01.buzz
aleemtips.online
allnyy8.shop
elso.app
onacat.online
gowelcomeflingofswish.homes
agamentospolo.online
24bm205er.autos
ulinary-schools-68403.bond
aggiemonroe.net
Signatures
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Formbook family
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Formbook payload 4 IoCs
resource yara_rule behavioral2/memory/2796-11-0x0000000000400000-0x000000000042F000-memory.dmp formbook behavioral2/memory/2796-16-0x0000000000400000-0x000000000042F000-memory.dmp formbook behavioral2/memory/2796-63-0x0000000000400000-0x000000000042F000-memory.dmp formbook behavioral2/memory/4244-75-0x0000000000140000-0x000000000016F000-memory.dmp formbook -
Adds policy Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run chkdsk.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\9RUX9XTXQ2D = "C:\\Program Files (x86)\\Ysbr\\ThumbCacheitsd.exe" chkdsk.exe -
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.
pid Process 1224 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation VBshqUbZtSxUibM.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 1204 set thread context of 2796 1204 VBshqUbZtSxUibM.exe 96 PID 2796 set thread context of 3468 2796 VBshqUbZtSxUibM.exe 56 PID 2796 set thread context of 3468 2796 VBshqUbZtSxUibM.exe 56 PID 4244 set thread context of 3468 4244 chkdsk.exe 56 -
Drops file in Program Files directory 1 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Ysbr\ThumbCacheitsd.exe chkdsk.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language VBshqUbZtSxUibM.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language chkdsk.exe -
Enumerates system info in registry 2 TTPs 1 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe -
description ioc Process Key created \Registry\User\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 chkdsk.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2796 VBshqUbZtSxUibM.exe 2796 VBshqUbZtSxUibM.exe 2796 VBshqUbZtSxUibM.exe 2796 VBshqUbZtSxUibM.exe 1224 powershell.exe 1224 powershell.exe 2796 VBshqUbZtSxUibM.exe 2796 VBshqUbZtSxUibM.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe -
Suspicious behavior: MapViewOfSection 8 IoCs
pid Process 2796 VBshqUbZtSxUibM.exe 2796 VBshqUbZtSxUibM.exe 2796 VBshqUbZtSxUibM.exe 2796 VBshqUbZtSxUibM.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe 4244 chkdsk.exe -
Suspicious use of AdjustPrivilegeToken 13 IoCs
description pid Process Token: SeDebugPrivilege 2796 VBshqUbZtSxUibM.exe Token: SeDebugPrivilege 1224 powershell.exe Token: SeShutdownPrivilege 3468 Explorer.EXE Token: SeCreatePagefilePrivilege 3468 Explorer.EXE Token: SeDebugPrivilege 4244 chkdsk.exe Token: SeShutdownPrivilege 3468 Explorer.EXE Token: SeCreatePagefilePrivilege 3468 Explorer.EXE Token: SeShutdownPrivilege 3468 Explorer.EXE Token: SeCreatePagefilePrivilege 3468 Explorer.EXE Token: SeShutdownPrivilege 3468 Explorer.EXE Token: SeCreatePagefilePrivilege 3468 Explorer.EXE Token: SeShutdownPrivilege 3468 Explorer.EXE Token: SeCreatePagefilePrivilege 3468 Explorer.EXE -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1204 wrote to memory of 1224 1204 VBshqUbZtSxUibM.exe 95 PID 1204 wrote to memory of 1224 1204 VBshqUbZtSxUibM.exe 95 PID 1204 wrote to memory of 1224 1204 VBshqUbZtSxUibM.exe 95 PID 1204 wrote to memory of 2796 1204 VBshqUbZtSxUibM.exe 96 PID 1204 wrote to memory of 2796 1204 VBshqUbZtSxUibM.exe 96 PID 1204 wrote to memory of 2796 1204 VBshqUbZtSxUibM.exe 96 PID 1204 wrote to memory of 2796 1204 VBshqUbZtSxUibM.exe 96 PID 1204 wrote to memory of 2796 1204 VBshqUbZtSxUibM.exe 96 PID 1204 wrote to memory of 2796 1204 VBshqUbZtSxUibM.exe 96 PID 3468 wrote to memory of 4244 3468 Explorer.EXE 99 PID 3468 wrote to memory of 4244 3468 Explorer.EXE 99 PID 3468 wrote to memory of 4244 3468 Explorer.EXE 99 PID 4244 wrote to memory of 1288 4244 chkdsk.exe 100 PID 4244 wrote to memory of 1288 4244 chkdsk.exe 100 PID 4244 wrote to memory of 1288 4244 chkdsk.exe 100 PID 4244 wrote to memory of 1564 4244 chkdsk.exe 110 PID 4244 wrote to memory of 1564 4244 chkdsk.exe 110 PID 4244 wrote to memory of 1564 4244 chkdsk.exe 110 PID 4244 wrote to memory of 1632 4244 chkdsk.exe 112 PID 4244 wrote to memory of 1632 4244 chkdsk.exe 112 PID 4244 wrote to memory of 1632 4244 chkdsk.exe 112
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3468 -
C:\Users\Admin\AppData\Local\Temp\VBshqUbZtSxUibM.exe"C:\Users\Admin\AppData\Local\Temp\VBshqUbZtSxUibM.exe"2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1204 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\VBshqUbZtSxUibM.exe"3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1224
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C:\Users\Admin\AppData\Local\Temp\VBshqUbZtSxUibM.exe"C:\Users\Admin\AppData\Local\Temp\VBshqUbZtSxUibM.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2796
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C:\Windows\SysWOW64\autochk.exe"C:\Windows\SysWOW64\autochk.exe"2⤵PID:2696
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C:\Windows\SysWOW64\chkdsk.exe"C:\Windows\SysWOW64\chkdsk.exe"2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4244 -
C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\VBshqUbZtSxUibM.exe"3⤵
- System Location Discovery: System Language Discovery
PID:1288
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C:\Windows\SysWOW64\cmd.exe/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V3⤵
- System Location Discovery: System Language Discovery
PID:1564
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵PID:1632
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
40KB
MD5a182561a527f929489bf4b8f74f65cd7
SHA18cd6866594759711ea1836e86a5b7ca64ee8911f
SHA25642aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914
SHA5129bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
80KB
MD57de0f9653b23b2339516cf2cad5d420c
SHA1d027bd131400a0a06979bfb4ee043f679a943b00
SHA25659468c2d84bf3c96ace3ae096be00c40e5b1f5aef53a508fc25f3dfc856dd0b0
SHA51250584381406da24ec6fa751e1c5fc888c099805841f19021474e0e0351f71a91681a84ec81897d2ec29dce78d53a55bd9246c2d73779cbdc6d68e6589d7a9058
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Filesize
40B
MD52f245469795b865bdd1b956c23d7893d
SHA16ad80b974d3808f5a20ea1e766c7d2f88b9e5895
SHA2561662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361
SHA512909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f
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Filesize
38B
MD54aadf49fed30e4c9b3fe4a3dd6445ebe
SHA11e332822167c6f351b99615eada2c30a538ff037
SHA25675034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56
SHA512eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945
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Filesize
40B
MD5d63a82e5d81e02e399090af26db0b9cb
SHA191d0014c8f54743bba141fd60c9d963f869d76c9
SHA256eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae
SHA51238afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad
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Filesize
872B
MD5bbc41c78bae6c71e63cb544a6a284d94
SHA133f2c1d9fa0e9c99b80bc2500621e95af38b1f9a
SHA256ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb
SHA5120aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4