Analysis
- max time kernel
148s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
01/07/2026, 14:56
Behavioral task
behavioral1
Sample
2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win11ltsc2024-20260629-en
windows11-ltsc_2024-x64
13 signatures
150 seconds
General
- Target 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260701-sa8rysav5v
- SHA256 b1534e0acfecb0a633c78f3913f1100f87e2a95383f855a95e39ffe271b5307a
- MD5 bf34a4cbe725dede546689dbc7ba54cc
- SHA1 56f2392c542ea4d27d8d4317342dceb06f1a08f9
- SHA512 b4b1c6fa701e8747ae0717a3e89a1a126fce04eba3c86cdf8864ec3c3b1dbc6766af961907b686bf138b96ab80fc3ab39407301aa5ab3e354e16b24b6090c4fa
- SSDEEP 12288:YqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:YjHPOSOkx2LFscU6UQOJdT
- TLSH T198F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000a00000001b1b6-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000a00000001b1b6-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral2/memory/4440-0-0x0000000000440000-0x00000000004C9000-memory.dmp UPX behavioral2/files/0x000a00000001b1b6-2.dat UPX behavioral2/memory/4176-3-0x0000000000D90000-0x0000000000E19000-memory.dmp UPX behavioral2/memory/4440-12-0x0000000000440000-0x00000000004C9000-memory.dmp UPX behavioral2/memory/4176-14-0x0000000000D90000-0x0000000000E19000-memory.dmp UPX behavioral2/memory/4440-29-0x0000000000440000-0x00000000004C9000-memory.dmp UPX behavioral2/memory/4176-30-0x0000000000D90000-0x0000000000E19000-memory.dmp UPX behavioral2/memory/4176-34-0x0000000000D90000-0x0000000000E19000-memory.dmp UPX behavioral2/memory/4440-43-0x0000000000440000-0x00000000004C9000-memory.dmp UPX behavioral2/memory/4440-48-0x0000000000440000-0x00000000004C9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4176 1b66b446 - 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 1 114.114.114.114 4440 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 4440 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 11 114.114.114.114 4440 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 12 223.5.5.5 4440 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 1b66b446 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 1b66b446 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 1b66b446 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 1b66b446 File created C:\Windows\SysWOW64\1b66b446 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 1b66b446 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 1b66b446 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 1b66b446 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 1b66b446 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 1b66b446 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 1b66b446 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 1b66b446 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 1b66b446 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 1b66b446 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 1b66b446 -
resource yara_rule behavioral2/memory/4440-0-0x0000000000440000-0x00000000004C9000-memory.dmp upx behavioral2/files/0x000a00000001b1b6-2.dat upx behavioral2/memory/4176-3-0x0000000000D90000-0x0000000000E19000-memory.dmp upx behavioral2/memory/4440-12-0x0000000000440000-0x00000000004C9000-memory.dmp upx behavioral2/memory/4176-14-0x0000000000D90000-0x0000000000E19000-memory.dmp upx behavioral2/memory/4440-29-0x0000000000440000-0x00000000004C9000-memory.dmp upx behavioral2/memory/4176-30-0x0000000000D90000-0x0000000000E19000-memory.dmp upx behavioral2/memory/4176-34-0x0000000000D90000-0x0000000000E19000-memory.dmp upx behavioral2/memory/4440-43-0x0000000000440000-0x00000000004C9000-memory.dmp upx behavioral2/memory/4440-48-0x0000000000440000-0x00000000004C9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\477ea0 1b66b446 File opened for modification C:\Windows\4c03b0 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_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 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1b66b446 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 1b66b446 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 1b66b446 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 1b66b446 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 1b66b446 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 1b66b446 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 1b66b446 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 1b66b446 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 1b66b446 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 1b66b446 - Modifies system certificate store 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA 1b66b446 Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA\Blob = 5c000000010000000400000080010000530000000100000040000000303e301f06092b06010401a032010130123010060a2b0601040182373c0101030200c0301b060567810c010330123010060a2b0601040182373c0101030200c00b000000010000003800000047006c006f00620061006c005300690067006e002000450043004300200052006f006f00740020004300410020002d002000520035000000090000000100000034000000303206082b0601050507030206082b0601050507030306082b0601050507030406082b0601050507030106082b06010505070308620000000100000020000000179fbc148a3dd00fd24ea13458cc43bfa7f59c8182d783a513f6ebec100c89241400000001000000140000003de629489bea07ca21444a26de6eded283d09f591d0000000100000010000000b647dd2a9ccadee75e8905e256cc6b147f000000010000000c000000300a06082b060105050703037e00000001000000080000000080c82b6886d7010300000001000000140000001f24c630cda418ef2069ffad4fdd5f463a1b69aa2000000001000000220200003082021e308201a4a0030201020211605949e0262ebb55f90a778a71f94ad86c300a06082a8648ce3d040303305031243022060355040b131b476c6f62616c5369676e2045434320526f6f74204341202d20523531133011060355040a130a476c6f62616c5369676e311330110603550403130a476c6f62616c5369676e301e170d3132313131333030303030305a170d3338303131393033313430375a305031243022060355040b131b476c6f62616c5369676e2045434320526f6f74204341202d20523531133011060355040a130a476c6f62616c5369676e311330110603550403130a476c6f62616c5369676e3076301006072a8648ce3d020106052b810400220362000447450e96fb7d5dbfe939d121f89f0bb6d57b1e923a48591cf062312dc07a28fe1aa75cb3b6cc97e745d458fad1776d43a2c08765340a1f7addeb3c33a1c59d4da46f4195387fc91e84ebd19e49928794870c3a854a669f9d59934d976106864aa3423040300e0603551d0f0101ff040403020106300f0603551d130101ff040530030101ff301d0603551d0e041604143de629489bea07ca21444a26de6eded283d09f59300a06082a8648ce3d0403030368003065023100e56912c96edbc631ba0941e197f8fbfd9ae27d12c9ed7c64d3cb05258b56d9a0e75e5d4e0b839c5b7629a00926216a62023071d2b58f5cea3be1780985a875923bc85cfd48ef0d7422a808e26ec549cec70cbca76169f1f73be12acbf92bf3669037 1b66b446 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4176 1b66b446 4176 1b66b446 4176 1b66b446 4176 1b66b446 4176 1b66b446 4176 1b66b446 4176 1b66b446 4176 1b66b446 4440 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4440 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4440 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4440 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4440 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4440 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4440 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4440 2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4176 1b66b446 Token: SeTcbPrivilege 4176 1b66b446
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-01_bf34a4cbe725dede546689dbc7ba54cc_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:4440
-
C:\Windows\Syswow64\1b66b446C:\Windows\Syswow64\1b66b4461⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4176
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\1b66b446
- Size 768KB
- SHA256 a62350943f4c887cff25bf62704ca42689b2b82afdb0b30078f43b3514efc877
- MD5 6018a1ed7718e1febcd5cc08744bfd33
- SHA1 05854543a6845239f315eaf778006910c8acf6ed
- SHA512 965955edf970edb30a31427b9b467f9cc6ed0737830b630ba9ce0514e694e33b0e67f2faa7dba5fecf6ea9ebb956181800c9c11824eb57b226124391386daf75
- SSDEEP 12288:8qXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:8jHPOSOkx2LFscU6UQOJdT
- TLSH T1CAF47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH