Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
05/05/2026, 00:27
Behavioral task
behavioral1
Sample
2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260505-ar3cdses7t
- SHA256 d3ebdee0b7313191f3079e8981430c8058b3b93cfcfdadfb6378ee8836bbe809
- MD5 37014076a8fe5f871f2443f926cfa7af
- SHA1 d21d05e901fb22beddde0164a63850c821774f13
- SHA512 53d96db1c1526773cf1c5136775996f13f40a1f3226764532143e28d1bbce907c5daf74094ecf1879e7ccb3c710edcec56c4e37f0cdb5d5a418661c4d798c732
- SSDEEP 24576:IjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:ITGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T11A658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a000000021655-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000a000000021655-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral1/memory/6136-0-0x0000000000F50000-0x0000000000FD9000-memory.dmp UPX behavioral1/memory/2324-3-0x0000000000770000-0x00000000007F9000-memory.dmp UPX behavioral1/files/0x000a000000021655-2.dat UPX behavioral1/memory/6136-16-0x0000000000F50000-0x0000000000FD9000-memory.dmp UPX behavioral1/memory/2324-18-0x0000000000770000-0x00000000007F9000-memory.dmp UPX behavioral1/memory/2324-22-0x0000000000770000-0x00000000007F9000-memory.dmp UPX behavioral1/memory/6136-27-0x0000000000F50000-0x0000000000FD9000-memory.dmp UPX behavioral1/memory/2324-28-0x0000000000770000-0x00000000007F9000-memory.dmp UPX behavioral1/memory/6136-35-0x0000000000F50000-0x0000000000FD9000-memory.dmp UPX behavioral1/memory/6136-44-0x0000000000F50000-0x0000000000FD9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 2324 a8dc74f0 - Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 3 114.114.114.114 6136 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 5 223.5.5.5 6136 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 40 114.114.114.114 6136 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 44 223.5.5.5 6136 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 13 IoCs
description ioc Process File created C:\Windows\SysWOW64\a8dc74f0 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 a8dc74f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE a8dc74f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 a8dc74f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft a8dc74f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache a8dc74f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a8dc74f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content a8dc74f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies a8dc74f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData a8dc74f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a8dc74f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a8dc74f0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a8dc74f0 -
resource yara_rule behavioral1/memory/6136-0-0x0000000000F50000-0x0000000000FD9000-memory.dmp upx behavioral1/memory/2324-3-0x0000000000770000-0x00000000007F9000-memory.dmp upx behavioral1/files/0x000a000000021655-2.dat upx behavioral1/memory/6136-16-0x0000000000F50000-0x0000000000FD9000-memory.dmp upx behavioral1/memory/2324-18-0x0000000000770000-0x00000000007F9000-memory.dmp upx behavioral1/memory/2324-22-0x0000000000770000-0x00000000007F9000-memory.dmp upx behavioral1/memory/6136-27-0x0000000000F50000-0x0000000000FD9000-memory.dmp upx behavioral1/memory/2324-28-0x0000000000770000-0x00000000007F9000-memory.dmp upx behavioral1/memory/6136-35-0x0000000000F50000-0x0000000000FD9000-memory.dmp upx behavioral1/memory/6136-44-0x0000000000F50000-0x0000000000FD9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\27c9a8 a8dc74f0 File opened for modification C:\Windows\690cf0 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a8dc74f0 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" a8dc74f0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" a8dc74f0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" a8dc74f0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" a8dc74f0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing a8dc74f0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix a8dc74f0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ a8dc74f0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" a8dc74f0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" a8dc74f0 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2324 a8dc74f0 2324 a8dc74f0 2324 a8dc74f0 2324 a8dc74f0 2324 a8dc74f0 2324 a8dc74f0 2324 a8dc74f0 2324 a8dc74f0 6136 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 6136 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 6136 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 6136 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 6136 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 6136 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 6136 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 6136 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 2324 a8dc74f0 Token: SeTcbPrivilege 2324 a8dc74f0
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:6136
-
C:\Windows\Syswow64\a8dc74f0C:\Windows\Syswow64\a8dc74f01⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2324
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\a8dc74f0
- Size 1.4MB
- SHA256 f63794a0ab78b0665f7c8246a0a03cf620e99b3ef9f190e9e02f5c7f7d7a27f9
- MD5 b94ac3a1eef3380e92853e968defe502
- SHA1 dcaefd83cc4113ba9490001185d22b4ab819d540
- SHA512 f5ab6bb66c61f71a3899f120b02456ea5bb6db3f1b5bf047ef2e601ee7435a86930323ff8a6aff50df13578b9eb406d739d4754a6490e43773f57374bd9a2631
- SSDEEP 24576:LjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:LTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1F0658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH