87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58

General

Target
87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe
Size 761KB
Sample260813-fxefea1te1
SHA256 87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58
MD5 a51c1c7e6cd63305f62ad726ee9dbc16
SHA1 ed76e44e70a8fec925ee536961cd6777e0ece9d6
SHA512 f2b9fe90d8e101608ebb2ff7c0c5852fe34e81985811de4daf747b23d1b79fbd71744a6237f597026451e8e36a30b6a200af2e88b719266e74126a5cbe4ac5ce
SSDEEP 12288:DSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:2vO2xJKRw2kOkxSkW298B
TLSH
T116F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1400	3e8b1c50

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	3828	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe
Destination IP	4	223.5.5.5	3828	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe
Destination IP	24	114.114.114.114	3828	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe
Destination IP	25	223.5.5.5	3828	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\3e8b1c50	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	3e8b1c50
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	3e8b1c50
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	3e8b1c50
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	3e8b1c50

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3828-0-0x00000000009D0000-0x0000000000A5C000-memory.dmp	upx
behavioral1/files/0x0014000000024469-2.dat	upx
behavioral1/memory/1400-4-0x0000000000CD0000-0x0000000000D5C000-memory.dmp	upx
behavioral1/memory/3828-10-0x00000000009D0000-0x0000000000A5C000-memory.dmp	upx
behavioral1/memory/1400-11-0x0000000000CD0000-0x0000000000D5C000-memory.dmp	upx
behavioral1/memory/1400-18-0x0000000000CD0000-0x0000000000D5C000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\17f7f0	3e8b1c50
File opened for modification	C:\Windows\418968	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.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	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3e8b1c50

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\Content\CachePrefix	3e8b1c50
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	3e8b1c50
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	3e8b1c50
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	3e8b1c50
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	3e8b1c50
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	3e8b1c50
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	3e8b1c50
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	3e8b1c50

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1400	3e8b1c50
1400	3e8b1c50
1400	3e8b1c50
1400	3e8b1c50
1400	3e8b1c50
1400	3e8b1c50
1400	3e8b1c50
1400	3e8b1c50
3828	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe
3828	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe
3828	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe
3828	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe
3828	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe
3828	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3828	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe
Token: SeTcbPrivilege	3828	87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe
Token: SeDebugPrivilege	1400	3e8b1c50
Token: SeTcbPrivilege	1400	3e8b1c50

C:\Users\Admin\AppData\Local\Temp\87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.exe
"C:\Users\Admin\AppData\Local\Temp\87a9489e4a997c26ecde10727f633b93a9c17495a9112df6180d03be9f274c58.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:3828

C:\Windows\Syswow64\3e8b1c50
C:\Windows\Syswow64\3e8b1c50
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:1400

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

3e8b1c50

Path C:\Windows\SysWOW64\3e8b1c50
Size 761KB
SHA256 8a1047af3a0f417237d71a25274496f916656426cf3081fb57bc839cf64f2e7d
MD5 7189ecfb52cc4f90186dffe502f7cddf
SHA1 0320d38ce8e0b10157b0e2bd94c3a330e3aa0b35
SHA512 59c79277ca1ae24e03d4e78ac265303c90cf39eebafe3030e3d7768b3a53f8c803681d2d31093d107419101f1acf2ba7ef04832ad00b05b4f1eb7b4fc90f32f5
SSDEEP 12288:7SvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:OvO2xJKRw2kOkxSkW298B
TLSH
T1FEF49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1400-4-0x0000000000CD0000-0x0000000000D5C000-memory.dmp

Download

memory/1400-11-0x0000000000CD0000-0x0000000000D5C000-memory.dmp

Download

memory/1400-18-0x0000000000CD0000-0x0000000000D5C000-memory.dmp

Download

memory/3828-0-0x00000000009D0000-0x0000000000A5C000-memory.dmp

Download

memory/3828-10-0x00000000009D0000-0x0000000000A5C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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