Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
14-01-2024 11:14
Static task
static1
Behavioral task
behavioral1
Sample
5b181ab9f4f2393cc2e6a2782deeb5b1.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
5b181ab9f4f2393cc2e6a2782deeb5b1.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
setup_installer.exe
Resource
win7-20231215-en
General
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Target
setup_installer.exe
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Size
3.0MB
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MD5
366e37b1124e87c837cd54b2b8227de2
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SHA1
fc626d56504d3f23afe3eb83522909b0e45d4b24
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SHA256
d15a05b695c66f6445f5f8862b336496f04609111e70f0c3387ff93d9b59648c
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SHA512
478416c0ee70d009ec48102e298557dc029ae9c7b83b2f73b5e29aff9643555a7e379dce94d26aaa61089158df32770afd042a585dcebce4cf748e30cd012a21
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SSDEEP
49152:xcBmBfXGrhtAVkVolNXA1PM5FYIDl/ekaE9i1IhZDaEwJ84vLRaBtIl9mTBoEV2:xxOrhFVolNXcS9R/eLWi1KDxCvLUBsKU
Malware Config
Extracted
nullmixer
http://motiwa.xyz/
Extracted
vidar
39.4
706
https://sergeevih43.tumblr.com/
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profile_id
706
Extracted
smokeloader
pub6
Extracted
smokeloader
2020
http://ppcspb.com/upload/
http://mebbing.com/upload/
http://twcamel.com/upload/
http://howdycash.com/upload/
http://lahuertasonora.com/upload/
http://kpotiques.com/upload/
Signatures
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description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection arnatic_5.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" arnatic_5.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" arnatic_5.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" arnatic_5.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" arnatic_5.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" arnatic_5.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRawWriteNotification = "1" arnatic_5.exe -
SmokeLoader
Modular backdoor trojan in use since 2014.
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Nirsoft 3 IoCs
resource yara_rule behavioral4/memory/3376-90-0x0000000000400000-0x000000000045B000-memory.dmp Nirsoft behavioral4/memory/632-124-0x0000000000400000-0x0000000000422000-memory.dmp Nirsoft behavioral4/memory/632-118-0x0000000000400000-0x0000000000422000-memory.dmp Nirsoft -
Vidar Stealer 3 IoCs
resource yara_rule behavioral4/memory/1864-106-0x0000000000400000-0x000000000094A000-memory.dmp family_vidar behavioral4/memory/1864-105-0x0000000002490000-0x000000000252D000-memory.dmp family_vidar behavioral4/memory/1864-135-0x0000000000400000-0x000000000094A000-memory.dmp family_vidar -
resource yara_rule behavioral4/files/0x0006000000023200-24.dat aspack_v212_v242 behavioral4/files/0x00060000000231fe-39.dat aspack_v212_v242 behavioral4/files/0x00060000000231fc-34.dat aspack_v212_v242 behavioral4/files/0x00060000000231fb-33.dat aspack_v212_v242 -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation setup_installer.exe Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation arnatic_3.exe -
Executes dropped EXE 8 IoCs
pid Process 2968 setup_install.exe 1860 arnatic_5.exe 3152 arnatic_2.exe 4916 arnatic_3.exe 1864 arnatic_1.exe 2164 arnatic_4.exe 3376 jfiag3g_gg.exe 632 jfiag3g_gg.exe -
Loads dropped DLL 7 IoCs
pid Process 2968 setup_install.exe 2968 setup_install.exe 2968 setup_install.exe 2968 setup_install.exe 2968 setup_install.exe 1360 TrustedInstaller.exe 3152 arnatic_2.exe -
resource yara_rule behavioral4/memory/3376-90-0x0000000000400000-0x000000000045B000-memory.dmp upx behavioral4/memory/632-124-0x0000000000400000-0x0000000000422000-memory.dmp upx behavioral4/memory/632-118-0x0000000000400000-0x0000000000422000-memory.dmp upx -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 10 ip-api.com 166 ipinfo.io 167 ipinfo.io -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 4 IoCs
pid pid_target Process procid_target 5016 2968 WerFault.exe 90 2960 1360 WerFault.exe 109 2908 1864 WerFault.exe 97 1884 3152 WerFault.exe 96 -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI arnatic_2.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI arnatic_2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI arnatic_2.exe -
Modifies registry class 3 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ arnatic_3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3152 arnatic_2.exe 3152 arnatic_2.exe 632 jfiag3g_gg.exe 632 jfiag3g_gg.exe 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found 3388 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3152 arnatic_2.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeShutdownPrivilege 3388 Process not Found Token: SeCreatePagefilePrivilege 3388 Process not Found Token: SeShutdownPrivilege 3388 Process not Found Token: SeCreatePagefilePrivilege 3388 Process not Found Token: SeShutdownPrivilege 3388 Process not Found Token: SeCreatePagefilePrivilege 3388 Process not Found Token: SeShutdownPrivilege 3388 Process not Found Token: SeCreatePagefilePrivilege 3388 Process not Found Token: SeShutdownPrivilege 3388 Process not Found Token: SeCreatePagefilePrivilege 3388 Process not Found -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 3388 Process not Found -
Suspicious use of WriteProcessMemory 42 IoCs
description pid Process procid_target PID 552 wrote to memory of 2968 552 setup_installer.exe 90 PID 552 wrote to memory of 2968 552 setup_installer.exe 90 PID 552 wrote to memory of 2968 552 setup_installer.exe 90 PID 2968 wrote to memory of 1420 2968 setup_install.exe 105 PID 2968 wrote to memory of 1420 2968 setup_install.exe 105 PID 2968 wrote to memory of 1420 2968 setup_install.exe 105 PID 2968 wrote to memory of 1552 2968 setup_install.exe 104 PID 2968 wrote to memory of 1552 2968 setup_install.exe 104 PID 2968 wrote to memory of 1552 2968 setup_install.exe 104 PID 2968 wrote to memory of 1052 2968 setup_install.exe 103 PID 2968 wrote to memory of 1052 2968 setup_install.exe 103 PID 2968 wrote to memory of 1052 2968 setup_install.exe 103 PID 2968 wrote to memory of 3256 2968 setup_install.exe 102 PID 2968 wrote to memory of 3256 2968 setup_install.exe 102 PID 2968 wrote to memory of 3256 2968 setup_install.exe 102 PID 2968 wrote to memory of 4892 2968 setup_install.exe 94 PID 2968 wrote to memory of 4892 2968 setup_install.exe 94 PID 2968 wrote to memory of 4892 2968 setup_install.exe 94 PID 4892 wrote to memory of 1860 4892 cmd.exe 101 PID 4892 wrote to memory of 1860 4892 cmd.exe 101 PID 4892 wrote to memory of 1860 4892 cmd.exe 101 PID 1052 wrote to memory of 4916 1052 cmd.exe 99 PID 1052 wrote to memory of 4916 1052 cmd.exe 99 PID 1052 wrote to memory of 4916 1052 cmd.exe 99 PID 1552 wrote to memory of 3152 1552 cmd.exe 96 PID 1552 wrote to memory of 3152 1552 cmd.exe 96 PID 1552 wrote to memory of 3152 1552 cmd.exe 96 PID 1420 wrote to memory of 1864 1420 cmd.exe 97 PID 1420 wrote to memory of 1864 1420 cmd.exe 97 PID 1420 wrote to memory of 1864 1420 cmd.exe 97 PID 3256 wrote to memory of 2164 3256 cmd.exe 98 PID 3256 wrote to memory of 2164 3256 cmd.exe 98 PID 3256 wrote to memory of 2164 3256 cmd.exe 98 PID 2164 wrote to memory of 3376 2164 arnatic_4.exe 107 PID 2164 wrote to memory of 3376 2164 arnatic_4.exe 107 PID 2164 wrote to memory of 3376 2164 arnatic_4.exe 107 PID 4916 wrote to memory of 1360 4916 arnatic_3.exe 122 PID 4916 wrote to memory of 1360 4916 arnatic_3.exe 122 PID 4916 wrote to memory of 1360 4916 arnatic_3.exe 122 PID 2164 wrote to memory of 632 2164 arnatic_4.exe 113 PID 2164 wrote to memory of 632 2164 arnatic_4.exe 113 PID 2164 wrote to memory of 632 2164 arnatic_4.exe 113 -
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:552 -
C:\Users\Admin\AppData\Local\Temp\7zS822C1A47\setup_install.exe"C:\Users\Admin\AppData\Local\Temp\7zS822C1A47\setup_install.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2968 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c arnatic_5.exe3⤵
- Suspicious use of WriteProcessMemory
PID:4892 -
C:\Users\Admin\AppData\Local\Temp\7zS822C1A47\arnatic_5.exearnatic_5.exe4⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
PID:1860
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c arnatic_4.exe3⤵
- Suspicious use of WriteProcessMemory
PID:3256
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c arnatic_3.exe3⤵
- Suspicious use of WriteProcessMemory
PID:1052
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c arnatic_2.exe3⤵
- Suspicious use of WriteProcessMemory
PID:1552
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c arnatic_1.exe3⤵
- Suspicious use of WriteProcessMemory
PID:1420
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2968 -s 5443⤵
- Program crash
PID:5016
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C:\Users\Admin\AppData\Local\Temp\7zS822C1A47\arnatic_2.exearnatic_2.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3152 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3152 -s 4122⤵
- Program crash
PID:1884
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C:\Users\Admin\AppData\Local\Temp\7zS822C1A47\arnatic_1.exearnatic_1.exe1⤵
- Executes dropped EXE
PID:1864 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1864 -s 10602⤵
- Program crash
PID:2908
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C:\Users\Admin\AppData\Local\Temp\7zS822C1A47\arnatic_4.exearnatic_4.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2164 -
C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exeC:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt2⤵
- Executes dropped EXE
PID:3376
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C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exeC:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:632
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C:\Users\Admin\AppData\Local\Temp\7zS822C1A47\arnatic_3.exearnatic_3.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4916 -
C:\Windows\SysWOW64\rUNdlL32.eXe"C:\Windows\system32\rUNdlL32.eXe" "C:\Users\Admin\AppData\Local\Temp\axhub.dll",axhub2⤵PID:1360
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 6003⤵
- Program crash
PID:2960
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2968 -ip 29681⤵PID:4384
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1360 -ip 13601⤵PID:4676
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1864 -ip 18641⤵PID:1668
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3152 -ip 31521⤵PID:4904
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C:\Windows\servicing\TrustedInstaller.exeC:\Windows\servicing\TrustedInstaller.exe1⤵
- Loads dropped DLL
PID:1360
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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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
MD5cda5b5ad65e20393f983916f30aece36
SHA1484c630a3d15f5f8434237b64b507cd1884334fc
SHA2567018da5ef7f6717c844f4db072ea5cda223afc9d203e02d475c12a0acbe0ddc6
SHA512d7abc1b2aff79e3b0b42b0d657dff9e295568403c9153053a6474f6cdbaf8e3c9b80a866b9055d763d352c837bfac93385ed192d5179d1dd4023442b74534324
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Filesize
345KB
MD5229e129cb65abb59aee47023fd4ba78b
SHA15e48301c9ddb9e5cd43609cd921156f2f704d3cf
SHA2561ef9030b2f335579a0607e2eb2a4306bd3ae2070eda8a29416bc7e83e8357407
SHA512ec22a9c2e6c9c8d41097ecb8bfcf5c476a15757ef7820c029646219fd2c1137088b2a0bf571f2d484ea209f79e3402f3caeddf31a91cecd107d00f865f450f8c