Overview
overview
10Static
static
3e6ea98b046...1).exe
windows10-2004-x64
10e6ea98b046...1).exe
windows7-x64
10e6ea98b046...1).exe
windows10-1703-x64
10e6ea98b046...1).exe
windows10-2004-x64
10e6ea98b046...1).exe
windows11-21h2-x64
10setup_installer.exe
windows10-1703-x64
10setup_installer.exe
windows7-x64
10setup_installer.exe
windows10-1703-x64
10setup_installer.exe
windows10-2004-x64
10setup_installer.exe
windows11-21h2-x64
10Analysis
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max time kernel
1214s -
max time network
1203s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
03-03-2024 21:57
Static task
static1
Behavioral task
behavioral1
Sample
e6ea98b046b11a35efa0ac1243f6190ff4d4247a35784e65a9feaaf4918ae779 (copy 1).exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
e6ea98b046b11a35efa0ac1243f6190ff4d4247a35784e65a9feaaf4918ae779 (copy 1).exe
Resource
win7-20240221-en
Behavioral task
behavioral3
Sample
e6ea98b046b11a35efa0ac1243f6190ff4d4247a35784e65a9feaaf4918ae779 (copy 1).exe
Resource
win10-20240221-en
Behavioral task
behavioral4
Sample
e6ea98b046b11a35efa0ac1243f6190ff4d4247a35784e65a9feaaf4918ae779 (copy 1).exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral5
Sample
e6ea98b046b11a35efa0ac1243f6190ff4d4247a35784e65a9feaaf4918ae779 (copy 1).exe
Resource
win11-20240221-en
Behavioral task
behavioral6
Sample
setup_installer.exe
Resource
win10-20240221-en
Behavioral task
behavioral7
Sample
setup_installer.exe
Resource
win7-20240220-en
Behavioral task
behavioral8
Sample
setup_installer.exe
Resource
win10-20240221-en
General
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Target
setup_installer.exe
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Size
1.5MB
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MD5
78418bfb23c7adf70828f675e990de49
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SHA1
534a26817c39972287abf166bb00c831440a1e57
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SHA256
b14218cb639c6afa35a66cf418035ce10475b53f5386896a44327fd48d8447c8
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SHA512
5df88e9bd4d241b69acba4499845e68286cd24fffed582864c24ad4c5d9bd47041c99ac32cc023c7a6dbe4cecaed39882274cbf4e12aedd5220c6e51075a8dd8
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SSDEEP
24576:xcVkKSqXCeomdCFDWHp/7F82H1qjUEPY/RQ5DsvLwcaBhdZIl9mTkPdei+uYvSm1:xcBFCpZgu2VqjUEwJ84vLRaBtIl9mT4Y
Malware Config
Extracted
nullmixer
http://wxkeww.xyz/
Extracted
smokeloader
pub6
Extracted
smokeloader
2020
http://conceitosseg.com/upload/
http://integrasidata.com/upload/
http://ozentekstil.com/upload/
http://finbelportal.com/upload/
http://telanganadigital.com/upload/
Signatures
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description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection karotima_1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" karotima_1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" karotima_1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" karotima_1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" karotima_1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" karotima_1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRawWriteNotification = "1" karotima_1.exe -
PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
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SmokeLoader
Modular backdoor trojan in use since 2014.
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resource yara_rule behavioral9/files/0x000700000002327b-18.dat aspack_v212_v242 behavioral9/files/0x0007000000023276-25.dat aspack_v212_v242 behavioral9/files/0x0007000000023277-24.dat aspack_v212_v242 behavioral9/files/0x0007000000023279-33.dat aspack_v212_v242 -
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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation setup_installer.exe -
Executes dropped EXE 4 IoCs
pid Process 532 setup_install.exe 3632 karotima_1.exe 1188 karotima_2.exe 2980 dactssf -
Loads dropped DLL 9 IoCs
pid Process 532 setup_install.exe 532 setup_install.exe 532 setup_install.exe 532 setup_install.exe 532 setup_install.exe 532 setup_install.exe 532 setup_install.exe 1188 karotima_2.exe 2980 dactssf -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 60 api.db-ip.com 54 ipinfo.io 55 ipinfo.io 58 api.db-ip.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 4636 532 WerFault.exe 100 -
Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI karotima_2.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI karotima_2.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI karotima_2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI dactssf Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI dactssf Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI dactssf -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1188 karotima_2.exe 1188 karotima_2.exe 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found 3188 Process not Found -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1188 karotima_2.exe 2980 dactssf -
Suspicious use of AdjustPrivilegeToken 16 IoCs
description pid Process Token: SeShutdownPrivilege 3188 Process not Found Token: SeCreatePagefilePrivilege 3188 Process not Found Token: SeShutdownPrivilege 3188 Process not Found Token: SeCreatePagefilePrivilege 3188 Process not Found Token: SeShutdownPrivilege 3188 Process not Found Token: SeCreatePagefilePrivilege 3188 Process not Found Token: SeShutdownPrivilege 3188 Process not Found Token: SeCreatePagefilePrivilege 3188 Process not Found Token: SeShutdownPrivilege 3188 Process not Found Token: SeCreatePagefilePrivilege 3188 Process not Found Token: SeShutdownPrivilege 3188 Process not Found Token: SeCreatePagefilePrivilege 3188 Process not Found Token: SeShutdownPrivilege 3188 Process not Found Token: SeCreatePagefilePrivilege 3188 Process not Found Token: SeShutdownPrivilege 3188 Process not Found Token: SeCreatePagefilePrivilege 3188 Process not Found -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3188 Process not Found 3188 Process not Found -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 3188 Process not Found -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 1656 wrote to memory of 532 1656 setup_installer.exe 100 PID 1656 wrote to memory of 532 1656 setup_installer.exe 100 PID 1656 wrote to memory of 532 1656 setup_installer.exe 100 PID 532 wrote to memory of 4368 532 setup_install.exe 103 PID 532 wrote to memory of 4368 532 setup_install.exe 103 PID 532 wrote to memory of 4368 532 setup_install.exe 103 PID 532 wrote to memory of 1516 532 setup_install.exe 104 PID 532 wrote to memory of 1516 532 setup_install.exe 104 PID 532 wrote to memory of 1516 532 setup_install.exe 104 PID 4368 wrote to memory of 3632 4368 cmd.exe 105 PID 4368 wrote to memory of 3632 4368 cmd.exe 105 PID 4368 wrote to memory of 3632 4368 cmd.exe 105 PID 1516 wrote to memory of 1188 1516 cmd.exe 106 PID 1516 wrote to memory of 1188 1516 cmd.exe 106 PID 1516 wrote to memory of 1188 1516 cmd.exe 106 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1656 -
C:\Users\Admin\AppData\Local\Temp\7zS87647748\setup_install.exe"C:\Users\Admin\AppData\Local\Temp\7zS87647748\setup_install.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:532 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c karotima_1.exe3⤵
- Suspicious use of WriteProcessMemory
PID:4368 -
C:\Users\Admin\AppData\Local\Temp\7zS87647748\karotima_1.exekarotima_1.exe4⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
PID:3632
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c karotima_2.exe3⤵
- Suspicious use of WriteProcessMemory
PID:1516 -
C:\Users\Admin\AppData\Local\Temp\7zS87647748\karotima_2.exekarotima_2.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1188
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 532 -s 4323⤵
- Program crash
PID:4636
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 532 -ip 5321⤵PID:4756
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1316 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:81⤵PID:1484
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4164 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:81⤵PID:4400
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C:\Users\Admin\AppData\Roaming\dactssfC:\Users\Admin\AppData\Roaming\dactssf1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2980
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
404KB
MD56a2442eb77d1902143fc827bd5d48ec3
SHA1d497a444fdfda957a25ed84f7c06b8af16d3d1e9
SHA25677f8374fecdcc9cc3cf3950d9031cd79d3b072a28e90d651b7fd423146e8b7dc
SHA51264dd628b4d665509bfc6676305768f68d9565ff4fbd957888308628d34154efe4f93d5c1e559608b4b24290a283d8ce7837aff960e6f067e1cb99370e5e5a2f6
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Filesize
704KB
MD5e695187c33a7361aeb62a22f932c47a6
SHA1fa7dba76a9b0ff4debd1e5c6efafd39b8998e250
SHA2568f7d1f2d80f341b415aec239aa23a1a5be74b10e92839a35554927f3d1ddbdb7
SHA512d823ad4fb66e486a99f01aedba52f2b66590a7aa3ca38589d860a77c98055da21c0d7b19cfd0de00f271a31d4f07f819dc1be6cca3031e822660ea6b35692e9b
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Filesize
222KB
MD580e74cf9f38c5712c6c2432a509c8bc7
SHA162ccdca04b3685728ce7f1a785cc01f3a3f3b3dc
SHA2569ff44c4da853cdbe606d2cfe4d04b410c3ae603acf0f1d3f75195b6236e0e123
SHA512d602cd95ad38cacae41b4848e72ac54ad81d287e1c825d68a088009512b14b5290a5a6c3032ebb2c91fecb5f743d519e92f1ccb27f5fe2841094a693d2b8de49
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Filesize
218KB
MD5d09be1f47fd6b827c81a4812b4f7296f
SHA1028ae3596c0790e6d7f9f2f3c8e9591527d267f7
SHA2560de53e7be51789adaec5294346220b20f793e7f8d153a3c110a92d658760697e
SHA512857f44a1383c29208509b8f1164b6438d750d5bb4419add7626986333433e67a0d1211ec240ce9472f30a1f32b16c8097aceba4b2255641b3d8928f94237f595
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Filesize
54KB
MD5e6e578373c2e416289a8da55f1dc5e8e
SHA1b601a229b66ec3d19c2369b36216c6f6eb1c063e
SHA25643e86d650a68f1f91fa2f4375aff2720e934aa78fa3d33e06363122bf5a9535f
SHA5129df6a8c418113a77051f6cb02745ad48c521c13cdadb85e0e37f79e29041464c8c7d7ba8c558fdd877035eb8475b6f93e7fc62b38504ddfe696a61480cabac89
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Filesize
113KB
MD59aec524b616618b0d3d00b27b6f51da1
SHA164264300801a353db324d11738ffed876550e1d3
SHA25659a466f77584438fc3abc0f43edc0fc99d41851726827a008841f05cfe12da7e
SHA5120648a26940e8f4aad73b05ad53e43316dd688e5d55e293cce88267b2b8744412be2e0d507dadad830776bf715bcd819f00f5d1f7ac1c5f1c4f682fb7457a20d0
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Filesize
647KB
MD55e279950775baae5fea04d2cc4526bcc
SHA18aef1e10031c3629512c43dd8b0b5d9060878453
SHA25697de47068327bb822b33c7106f9cbb489480901a6749513ef5c31d229dcaca87
SHA512666325e9ed71da4955058aea31b91e2e848be43211e511865f393b7f537c208c6b31c182f7d728c2704e9fc87e7d1be3f98f5fee4d34f11c56764e1c599afd02
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Filesize
69KB
MD51e0d62c34ff2e649ebc5c372065732ee
SHA1fcfaa36ba456159b26140a43e80fbd7e9d9af2de
SHA256509cb1d1443b623a02562ac760bced540e327c65157ffa938a22f75e38155723
SHA5123653f8ed8ad3476632f731a3e76c6aae97898e4bf14f70007c93e53bc443906835be29f861c4a123db5b11e0f3dd5013b2b3833469a062060825df9ee708dc61
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Filesize
290KB
MD5118f130d93db3be4452ad8a0751509df
SHA14cac4b964784aadc7e6f41c21b854c668dca6981
SHA256f7dec887c3345567ce86ce60cc8841a6a54eda35049811049debd1c5451656f4
SHA512ec263d9cfc0a0324f8f79f6f6703f507d06f454cbc9964595a00d9606aae86c34920c8a10ef3d4413aceb85e33d731634200c0e7ee099b8a35baf8e69f46234f
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Filesize
1.2MB
MD5b98c4833b521ddd435db37863dd42392
SHA1bcd52fc985d44fb6f7f366290e8ef277d1bf8234
SHA25671ecb06d9584f312c375b9bef2b22b71e803ae791c817924c9267572ca968a87
SHA512de2dd1b037857470a64b2f7a4f840a5e01170185237b07ca0b375e70c68de19e299f15dfeef3d6a18231ec6b936f63f7df338a489b19a0905afdded05fdbf596
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Filesize
1.6MB
MD54f3387277ccbd6d1f21ac5c07fe4ca68
SHA1e16506f662dc92023bf82def1d621497c8ab5890
SHA256767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
SHA5129da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219