88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70

General

Target
88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe
Size 761KB
Sample260808-2te4esel31
SHA256 88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70
MD5 730b680e2b2e8f84f5cd04fd12d48625
SHA1 81ad9419e84724d1d0ba439a701759f9e2d34054
SHA512 378d9d208cea8c217d7608bd1a837745ee16f97ed7a7c61b493723ad1e29c7522d1b1caf478fc39b0885e13306e174f1d19226abed6a68e9f917cd22420eace4
SSDEEP 12288:kSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:XvO2xJKRw2kOkxSkW298B
TLSH
T10BF49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3904	8f6f7ced

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	38	114.114.114.114	976	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe
Destination IP	39	223.5.5.5	976	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe
Destination IP	3	114.114.114.114	976	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe
Destination IP	4	223.5.5.5	976	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	8f6f7ced
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	8f6f7ced
File created	C:\Windows\SysWOW64\8f6f7ced	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	8f6f7ced
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	8f6f7ced

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/976-0-0x0000000000420000-0x00000000004AC000-memory.dmp	upx
behavioral1/files/0x0014000000024469-2.dat	upx
behavioral1/memory/3904-4-0x0000000000B00000-0x0000000000B8C000-memory.dmp	upx
behavioral1/memory/976-10-0x0000000000420000-0x00000000004AC000-memory.dmp	upx
behavioral1/memory/3904-11-0x0000000000B00000-0x0000000000B8C000-memory.dmp	upx
behavioral1/memory/3904-19-0x0000000000B00000-0x0000000000B8C000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\42d680	8f6f7ced
File opened for modification	C:\Windows\10b5a0	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8f6f7ced

Modifies data under HKEY_USERS 8 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	8f6f7ced
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	8f6f7ced
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	8f6f7ced
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	8f6f7ced
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	8f6f7ced
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	8f6f7ced
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	8f6f7ced
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	8f6f7ced

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
3904	8f6f7ced
3904	8f6f7ced
3904	8f6f7ced
3904	8f6f7ced
3904	8f6f7ced
3904	8f6f7ced
3904	8f6f7ced
3904	8f6f7ced
976	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe
976	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe
976	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe
976	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe
976	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe
976	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	976	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe
Token: SeTcbPrivilege	976	88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe
Token: SeDebugPrivilege	3904	8f6f7ced
Token: SeTcbPrivilege	3904	8f6f7ced

C:\Users\Admin\AppData\Local\Temp\88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.exe
"C:\Users\Admin\AppData\Local\Temp\88471ef9f519cc90f2ada55ff72d855ecdffbb8548cf0638f150ef94bd163d70.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:976

C:\Windows\Syswow64\8f6f7ced
C:\Windows\Syswow64\8f6f7ced
1⤵
- 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:3904

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

8f6f7ced

Path C:\Windows\SysWOW64\8f6f7ced
Size 761KB
SHA256 63e932023bb4a2be05998074e0db7b820aab08393290052f3647959da740f34b
MD5 ba427cdc30133e2b33b4dc4afed751f3
SHA1 63e2fbb11a4dd581a2000f09cc39decfa1091c08
SHA512 f884f817da8cf779fefbfa797beb90d917af556e776837194ec911e158cf54b12fb93679698aa40efc0e4a4202285d9c7f34499baaa25961c6031df2a3a22896
SSDEEP 12288:OSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:tvO2xJKRw2kOkxSkW298B
TLSH
T12DF49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/976-0-0x0000000000420000-0x00000000004AC000-memory.dmp

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memory/976-10-0x0000000000420000-0x00000000004AC000-memory.dmp

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memory/3904-4-0x0000000000B00000-0x0000000000B8C000-memory.dmp

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memory/3904-11-0x0000000000B00000-0x0000000000B8C000-memory.dmp

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memory/3904-19-0x0000000000B00000-0x0000000000B8C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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