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Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
27/01/2024, 00:29
Static task
static1
Behavioral task
behavioral1
Sample
78cc2004a61a5f5bd968bc7449a6e41d.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
78cc2004a61a5f5bd968bc7449a6e41d.exe
Resource
win10v2004-20231222-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
1.5MB
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MD5
c0e6ffa5d96ec511f8fc16576f576d7f
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SHA1
cf96fcb912c1d7cea6e9840aefcfe2d0f5ad1846
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SHA256
f93e49425c33932d4adda4e5ff0818a0970280a22883824d806e4cf4f511a82f
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SHA512
f43d0c695f8be14a6f4758fc7a91e88564e2ce1ac58f964cd4b4528e8bd8541ce6e9e3172b8ee17de3305ac6132e9a67fa6f74532933fc48e13cae62d1bdff23
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SSDEEP
49152:xcBvCpZgu2X0EwJ84vLRaBtIl9mTM8VswpNm0jz:xDZ2XjCvLUBsK7ZpUs
Malware Config
Extracted
nullmixer
http://marisana.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 Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRawWriteNotification = "1" karotima_1.exe 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 -
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 behavioral4/files/0x0006000000023255-18.dat aspack_v212_v242 behavioral4/files/0x0006000000023255-21.dat aspack_v212_v242 behavioral4/files/0x0006000000023253-36.dat aspack_v212_v242 behavioral4/files/0x0006000000023253-34.dat aspack_v212_v242 behavioral4/files/0x0006000000023251-31.dat aspack_v212_v242 behavioral4/files/0x0006000000023250-27.dat aspack_v212_v242 behavioral4/files/0x0006000000023250-26.dat aspack_v212_v242 behavioral4/files/0x0006000000023255-23.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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation setup_installer.exe -
Executes dropped EXE 3 IoCs
pid Process 1220 setup_install.exe 432 karotima_2.exe 3720 karotima_1.exe -
Loads dropped DLL 7 IoCs
pid Process 1220 setup_install.exe 1220 setup_install.exe 1220 setup_install.exe 1220 setup_install.exe 1220 setup_install.exe 1220 setup_install.exe 432 karotima_2.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 9 ipinfo.io 10 ipinfo.io -
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 3784 1220 WerFault.exe 88 -
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 karotima_2.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI karotima_2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI karotima_2.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 432 karotima_2.exe 432 karotima_2.exe 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found 3592 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 432 karotima_2.exe -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 3592 Process not Found -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 968 wrote to memory of 1220 968 setup_installer.exe 88 PID 968 wrote to memory of 1220 968 setup_installer.exe 88 PID 968 wrote to memory of 1220 968 setup_installer.exe 88 PID 1220 wrote to memory of 2188 1220 setup_install.exe 92 PID 1220 wrote to memory of 2188 1220 setup_install.exe 92 PID 1220 wrote to memory of 2188 1220 setup_install.exe 92 PID 1220 wrote to memory of 924 1220 setup_install.exe 91 PID 1220 wrote to memory of 924 1220 setup_install.exe 91 PID 1220 wrote to memory of 924 1220 setup_install.exe 91 PID 924 wrote to memory of 432 924 cmd.exe 93 PID 924 wrote to memory of 432 924 cmd.exe 93 PID 924 wrote to memory of 432 924 cmd.exe 93 PID 2188 wrote to memory of 3720 2188 cmd.exe 94 PID 2188 wrote to memory of 3720 2188 cmd.exe 94 PID 2188 wrote to memory of 3720 2188 cmd.exe 94 -
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:968 -
C:\Users\Admin\AppData\Local\Temp\7zS8C3349B7\setup_install.exe"C:\Users\Admin\AppData\Local\Temp\7zS8C3349B7\setup_install.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1220 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c karotima_2.exe3⤵
- Suspicious use of WriteProcessMemory
PID:924 -
C:\Users\Admin\AppData\Local\Temp\7zS8C3349B7\karotima_2.exekarotima_2.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:432
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c karotima_1.exe3⤵
- Suspicious use of WriteProcessMemory
PID:2188 -
C:\Users\Admin\AppData\Local\Temp\7zS8C3349B7\karotima_1.exekarotima_1.exe4⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
PID:3720
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1220 -s 5043⤵
- Program crash
PID:3784
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1220 -ip 12201⤵PID:2908
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
64KB
MD530c503e2033b3f5faaa4170aefe2639d
SHA10dc846ef9adf0b0addcb62b3ed6e0146581f73ac
SHA256586737a7e7dd058740d28ff60e5fb4aea260fbe83788e97bebd1123cfe2d1960
SHA512af094095a4b5f5249de6d1497d932ac222b10d1d7e2e2c02fc034412056698b53736904b522ac3d963e104bdba32c23a4ce5d1b152fea44ad2af79114cb09710
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Filesize
7KB
MD570e97a19778d673b3e693cbe5e49ea86
SHA1f19b178cef58c89b1f9fafca12264cb700337a49
SHA256039e5c17eefd9b7f0345d230b771fdbacc6bf0b65ab7f2970ccfe4fa1d67b226
SHA5126a364abb9b91717d59683eabc425f956c4fd870b00104d40e8b0723dc054f084370edf45b61aea30eddd02944872ff551749f8520cacc1dcbca2b2ded14eb0a4
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Filesize
132KB
MD5eebcab8eadfd0e1454d61b4429c7e0ae
SHA1d9671fce8ce14fa6f69de20bfb7b0724c908232e
SHA256373e780c2f19f88898b12b36886d2adfcec0e0bdc059ee89265acbb46dea0e55
SHA512bc4dc6fa1190b2f375c3f273815c51db3d9f338ff0f5622af14e1d6548e2f82c6051dcbe1531ba59b2aa84f1bb01727e9b4f4065fb2ded62089d335e0424afa3
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Filesize
70KB
MD5a3ccf08c15c6d4d515a8344f7d9aec11
SHA13a2b957c234c477318db3fd11f2253283841fb76
SHA256dc3cba954ecaed747f53a7853e52e805576b09fb892be88b9b1f2cfa96e11691
SHA5129450f0e7771f6f7cfe2c0a3c59991a0e74acc46e042d7038242094e16bba768c6f77f5d0203143458dc81b0b6a44ebdd1c328e760393729afc3a696438ddeb65
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Filesize
218KB
MD5d09be1f47fd6b827c81a4812b4f7296f
SHA1028ae3596c0790e6d7f9f2f3c8e9591527d267f7
SHA2560de53e7be51789adaec5294346220b20f793e7f8d153a3c110a92d658760697e
SHA512857f44a1383c29208509b8f1164b6438d750d5bb4419add7626986333433e67a0d1211ec240ce9472f30a1f32b16c8097aceba4b2255641b3d8928f94237f595
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Filesize
90KB
MD57947a3ef4a38ab46254f3f328aa2edeb
SHA17a4f63605aacfa1141f674f2f48b3419a89895c6
SHA25685a470497454d21a0fa696558688f4353704263bed4d6968a98ba0d7b8e79612
SHA512518ac0b60602f28035c16956896765c56f0277e2f7fc98fd67517dd513ef45aec3b62566f37830f8663c5bb6bb8a8c83e62397b6bc0a11b2c5a6ad737387a825
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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
103KB
MD51480739d43aa5f0a5b4b265e5a7e109f
SHA1c8d5444c03e4d45ed23e81a58288e2d26990c2fb
SHA2566bf0c7930a96bb415a3f03dbf82ddb4647de432c4427c068121eb6552bdc9844
SHA5126a745a5a1474dadc5e205506fa505f4769df4dcf807fd58f7de6b4b2037625f94720debfa089c50d7c70670405142a11a3b71762fb30e668fef3c3a7b98b7aeb
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Filesize
171KB
MD570d627e2148b703e848dce63c063f2dd
SHA1a53f357e4ce0b9b1416cb05bafb5f63cfda47d03
SHA2567534086d3f0127e434e06042d4f61cd41d639e8a5b3baab5e215a2b7997ac762
SHA512fcd3ab1cf98f552d4c0d9e64f4be8fc4d279af9ca908da42fa09f13781036b1c700870988d1084aec78ce06fcc139b053287af2248d0791925eb20deba81f9b9
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Filesize
249KB
MD5a17908e6ee1167c9da4620c8d305ac46
SHA1352cc5c4bcad6c260d3d3dc79575a5db7fb3f5c7
SHA25606938caee5242a06b4d2bc315e7c4ac81bb17f176fa8292b7b98f7e0942c9ecd
SHA512f457fcb5cea8c558b67f2c1c8a8186a1409c103d5d508a5e9bb0f22b3d3032902fbdc7ef794cf1a10e4696b6a4309b7fd8bfda409a2e0444ba400b833320c192
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Filesize
69KB
MD51e0d62c34ff2e649ebc5c372065732ee
SHA1fcfaa36ba456159b26140a43e80fbd7e9d9af2de
SHA256509cb1d1443b623a02562ac760bced540e327c65157ffa938a22f75e38155723
SHA5123653f8ed8ad3476632f731a3e76c6aae97898e4bf14f70007c93e53bc443906835be29f861c4a123db5b11e0f3dd5013b2b3833469a062060825df9ee708dc61
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Filesize
281KB
MD54a69861e4b3850f31158d54f17572dfd
SHA196402c8baa66276eccb29455512d008559711541
SHA2567faa79746f887851826537934ec4f57d12becf9e99927c37a5b5971683eedda1
SHA5127ee784cd5ea1dd4eaf6a2b8d389929d3bd3cfcb12385f1518898df7b98082de639cff5e552b9d5198367f5bc7d966d7d5cf54fa8cd3916e88e08055a017179e6
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Filesize
194KB
MD5bebb07efe93b4063146ee1ea29d1aa1c
SHA19424495fd67cb3e757b05de1600437ef6535434c
SHA25654acbfca93711925c55cc48958d717c8350957d50db8d0f80a4884cb7ffce28e
SHA512deffc19a2972c5fbf11170862ff6355af4a163514bc19adf3dfca8bd0d0b736ead5b5dcebc6b56b011fb6a7eadd0b1c6d49bfbd33b0dde97bae36e89a97acae5
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Filesize
287KB
MD5525ac099d70602763bd7f9f9e8518b07
SHA1e963393e9ec19249adea507cd54c731a16227980
SHA256cc78e389c7a8fed598e312f2e150ffb8a99d9bffdfa4982bd59ae6ce7693efbf
SHA512fc4cd5120656fd80f66e689786cbcce1d9259e0bb7b37f653b5e130463f128f38c024b0e84f8561bad48d7b066dd965a9a94a7bbcb0dbecb2bc3468902293d67
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Filesize
104KB
MD54e63d75321019dfad9219b092662f16b
SHA145edf4ea338d0df80fb185d84833a8bca64bd5ea
SHA2566de202dc486d6acd93893562f035f9ca10dbdd6762b904260ff732a4c8124ca0
SHA5126c26b6bd4887b8fe33b0882458404c1882a366d0106a95e65b2078e433448d4706b3fda0f668af2827dda3447a186bf5fe640cafa7d47b7d23658ce6e17054ed
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Filesize
328KB
MD56f7f47269f92b58955a6714ddba7fcd4
SHA1e92a5ec35e1900af4849fe54da71abc939b58ab3
SHA2562c7607aeadea3ed5a9c4f6c0f25b097d5219b2ed16697cd5bd06407906098569
SHA512a04a2919ad8a21d994460c73ccd36e1694c101078126e9add60dced76b87efae2eb7f7c71f997779645fbef78c9aff8475943cc8b81e8c2830c90a695c9d4152