Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
04/08/2026, 02:43
Behavioral task
behavioral1
Sample
2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260804-c7s5rstycx
- SHA256 303daae41b45a2ae85718c44897d874d793f06e89ad31746956a6b76becaaee9
- MD5 a1cd27f6da6d159b58917fbb5d0a5f20
- SHA1 e3e8883ca2ecb580f83665b139becfa95c677bc3
- SHA512 a1ae41226afc3f68bf7566fa330f9411bdfd74eaaa47dcf48fad3f0a2f255d01ebfc0d301a589a1741ba3b89ac9ac5a34a2337f4540ac0204dbb2d542304d239
- SSDEEP 12288:tqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:tjHPOSOkx2LFscU6UQOJdT
- TLSH T129F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000800000002466e-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000800000002466e-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 8 IoCs
resource yara_rule behavioral1/memory/2180-0-0x0000000000AD0000-0x0000000000B59000-memory.dmp UPX behavioral1/files/0x000800000002466e-2.dat UPX behavioral1/memory/568-4-0x0000000000710000-0x0000000000799000-memory.dmp UPX behavioral1/memory/2180-25-0x0000000000AD0000-0x0000000000B59000-memory.dmp UPX behavioral1/memory/568-27-0x0000000000710000-0x0000000000799000-memory.dmp UPX behavioral1/memory/2180-42-0x0000000000AD0000-0x0000000000B59000-memory.dmp UPX behavioral1/memory/568-43-0x0000000000710000-0x0000000000799000-memory.dmp UPX behavioral1/memory/2180-46-0x0000000000AD0000-0x0000000000B59000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 568 778dd50d - 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 2180 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 4 223.5.5.5 2180 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 31 114.114.114.114 2180 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 33 223.5.5.5 2180 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_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\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 778dd50d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 778dd50d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 778dd50d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 778dd50d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 778dd50d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 778dd50d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 778dd50d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 778dd50d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 778dd50d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 778dd50d File created C:\Windows\SysWOW64\778dd50d 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 778dd50d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 778dd50d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 778dd50d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 778dd50d -
resource yara_rule behavioral1/memory/2180-0-0x0000000000AD0000-0x0000000000B59000-memory.dmp upx behavioral1/files/0x000800000002466e-2.dat upx behavioral1/memory/568-4-0x0000000000710000-0x0000000000799000-memory.dmp upx behavioral1/memory/2180-25-0x0000000000AD0000-0x0000000000B59000-memory.dmp upx behavioral1/memory/568-27-0x0000000000710000-0x0000000000799000-memory.dmp upx behavioral1/memory/2180-42-0x0000000000AD0000-0x0000000000B59000-memory.dmp upx behavioral1/memory/568-43-0x0000000000710000-0x0000000000799000-memory.dmp upx behavioral1/memory/2180-46-0x0000000000AD0000-0x0000000000B59000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\9b970 778dd50d File opened for modification C:\Windows\255288 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_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 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 778dd50d - 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\Cookies\CachePrefix = "Cookie:" 778dd50d Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 778dd50d Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 778dd50d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 778dd50d Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 778dd50d Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 778dd50d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 778dd50d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 778dd50d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 778dd50d - Suspicious behavior: EnumeratesProcesses 26 IoCs
pid Process 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 568 778dd50d 2180 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2180 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2180 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2180 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2180 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2180 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2180 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 2180 2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 568 778dd50d Token: SeTcbPrivilege 568 778dd50d
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-03_a1cd27f6da6d159b58917fbb5d0a5f20_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:2180
-
C:\Windows\Syswow64\778dd50dC:\Windows\Syswow64\778dd50d1⤵
- 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:568
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\778dd50d
- Size 768KB
- SHA256 2b5e0bda32612c4b976b0523903a770e472ad96c74625a06c076ce4a12896012
- MD5 13fec90b59080a7b5dc0e30a31e6c3e0
- SHA1 a638e5264bf7f8b994556a6bd61fdca333dbd181
- SHA512 a915709b921e6595a00a02101c797f1aa962d87cbfc6f9997a9135761cf34ed7d91f379d9022656c5631a1078405e4c62214f4b00f4d4c8f2eec3c61b0bca858
- SSDEEP 12288:zqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:zjHPOSOkx2LFscU6UQOJdT
- TLSH T1B1F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH