ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559

General

Target
ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Size 199KB
Sample260831-qfttwavyev
SHA256 ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559
MD5 7c8c8598b0b2f9ad1879001e134e39cf
SHA1 966d43b18dc1c153dfb91f1ae740ae2c3e2173f6
SHA512 969d1d1605455913f07807eb903d8020aeab7a68480adff5a3b5a074ddb45aab6b713f3109cea8b20408f3305b2ca6ec869612a6bfa9a851348ac89bf6ebeb4e
SSDEEP 6144:TjYD4PawAJ1xI2CM9HMOXxO+cpHAB7ZPCw3:TZanrCadXAHw7ZD3
TLSH
T15F14E1127B94C13EF04BC6F01E7D9EB6EA7AB8280B41915B23D4D6568EF12909F0E357
MD5 SHA1 SHA512 SSDEEP TLSH

Score

6^/10

discovery persistence upx

Malware Config

Signatures

Modifies WinLogon 2 TTPs 8 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlogon\Asynchronous = "1"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlogon\Startup = "EvWinLogon"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlogon	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlogon\Impersonate = "1"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlogon\Logon = "EvWinLogon"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlogon\StartShell = "EvWinLogon"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlogon\DLLName = "wlogon.dll"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\wlogon.dll	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
File opened for modification	C:\Windows\SysWOW64\net.cpl	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
File opened for modification	C:\Windows\SysWOW64\lcss.exe	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
File opened for modification	C:\Windows\SysWOW64\crypto.dll	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1936-0-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/files/0x0008000000024553-6.dat	upx
behavioral1/memory/1936-26-0x0000000000400000-0x0000000000421000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe

Modifies registry class 19 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\ = "Windows Cryptography"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\ProgID\ = "WinCryptography.Encrypt.1"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt\CLSID\ = "{310DE29C-0AD3-4A43-A2DB-221F1160CACB}"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt\CurVer\ = "WinCryptography.Encrypt.1"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt.1\CLSID	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\VersionIndependentProgID	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\InprocServer32\ = "crypto.dll"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\InprocServer32\ThreadingModel = "Both"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\VersionIndependentProgID\ = "WinCryptography.Encrypt"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt.1\CLSID\ = "{310DE29C-0AD3-4A43-A2DB-221F1160CACB}"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt\CLSID	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt\ = "Windows Cryptography"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt.1\ = "Windows Cryptography"	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\InprocServer32	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\ProgID	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt\CurVer	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt.1	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	1936	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
Token: SeDebugPrivilege	1936	ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe

C:\Users\Admin\AppData\Local\Temp\ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe
"C:\Users\Admin\AppData\Local\Temp\ae3c3e56c9f589fa79856d9150b885ac2c5a266c98eda178b7027fec2d7fc559.exe"
1⤵
- Modifies WinLogon
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:1936

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

lcss.exe

Path C:\Windows\SysWOW64\lcss.exe
Size 191KB
SHA256 6dc62b886ed1bd7de8c75ef47c063a2fb9c3062f020eacb547c09c0daa596f6f
MD5 b59cc731a346ffe6642d48e75fec61e6
SHA1 03ed17b96f0935c435ca7ae78ca4cd724df413fd
SHA512 0d57ad97b6c12f770d5f49c08bb6155f7a043bc0cb99693af5d52316a11fad39d90ca8eaafc2f60e0f4c36a9a633b1eae7bd38db2b264d4e9a0b5336c79b9967
SSDEEP 3072:XHI2u4IM9HZ6j9mD4Pa78AgZUUeXsGp3VxEiziYg91AyIxQOjEdA:XI2CM9HsjYD4PawAJ1hpEuizAyqQOjUA
TLSH
T13E14F112BBC4C13AF45787B05D7D99B7E93AF9640F1182AB139093258DF2660EE0E367
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

net.cpl

Path C:\Windows\SysWOW64\net.cpl
Size 176KB
SHA256 699c651990362bd4db52fbd6a7ad810ae4d9f723aad65a8c6c075674527455c6
MD5 05c016105d4c52625411a53d81433863
SHA1 0c8d3d63be81d87884813e3cd5d4a48c058d145a
SHA512 40a9d05f41ddd490d9717a54a9026defd048d3bc817a9931aad85fd05b9acd8ac3df544918321d4e82dcd4399d7d37becfe41419926dd6df8a0a5e388b2b91fd
SSDEEP 3072:Tj9mD4Pa78AgZUUeXRHI2u4IM9HZoJxD8wnSqOvMzQzYdpi:TjYD4PawAJ1xI2CM9HyLIISAdpi
TLSH
T1E204E113BBD4C03AF29AC7B12D7D96B7F97EB5240F02415B23A4D2265DF11909E063AB
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1936-0-0x0000000000400000-0x0000000000421000-memory.dmp

Download

memory/1936-1-0x0000000000418000-0x0000000000419000-memory.dmp

Download

memory/1936-26-0x0000000000400000-0x0000000000421000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads