dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438

General

Target
dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe
Size 1.7MB
Sample260506-lavf1aev81
SHA256 dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438
MD5 5b5bc5b5a9d87c03aa33a5cf1207f80b
SHA1 14e3d828570cbd88b262691d5d7f54d4e9cc804e
SHA512 5a2247192c329a59ed71f8ec764fb39a912d71dca29a9eecbcbe45b85c4fef8dda397023dc1e0e5afd5035a57a7edd5920329042f014ea23d4bbd5934c79ea33
SSDEEP 24576:MvO2xJKRw2kOkx2LFRvcU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:MHHKe2WQX56/OJdJCXDrsOFZMjHfUr
TLSH
T143858D31AAC04132E2B3867585FA56F6A9257C222721E5CF62C57B291E737D3ED3070E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2160	6c55dafc

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	2	223.5.5.5	2804	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe
Destination IP	11	114.114.114.114	2804	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe
Destination IP	12	223.5.5.5	2804	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe
Destination IP	1	114.114.114.114	2804	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe

Drops file in System32 directory 15 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft	6c55dafc
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8	6c55dafc
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	6c55dafc
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	6c55dafc
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	6c55dafc
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	6c55dafc
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content	6c55dafc
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache	6c55dafc
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	6c55dafc
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046	6c55dafc
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8	6c55dafc
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046	6c55dafc
File created	C:\Windows\SysWOW64\6c55dafc	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	6c55dafc
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData	6c55dafc

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2804-0-0x0000000000D60000-0x0000000000DEC000-memory.dmp	upx
behavioral2/files/0x000b00000002708f-2.dat	upx
behavioral2/memory/2160-4-0x00000000002A0000-0x000000000032C000-memory.dmp	upx
behavioral2/memory/2804-18-0x0000000000D60000-0x0000000000DEC000-memory.dmp	upx
behavioral2/memory/2160-21-0x00000000002A0000-0x000000000032C000-memory.dmp	upx
behavioral2/memory/2160-45-0x00000000002A0000-0x000000000032C000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\24fae0	6c55dafc
File opened for modification	C:\Windows\300168	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.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	6c55dafc
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe

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	6c55dafc
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	6c55dafc
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	6c55dafc
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	6c55dafc
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	6c55dafc
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	6c55dafc
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	6c55dafc
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	6c55dafc
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	6c55dafc

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2160	6c55dafc
2160	6c55dafc
2160	6c55dafc
2160	6c55dafc
2160	6c55dafc
2160	6c55dafc
2160	6c55dafc
2160	6c55dafc
2804	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe
2804	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe
2804	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe
2804	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe
2804	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe
2804	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2804	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe
Token: SeTcbPrivilege	2804	dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe
Token: SeDebugPrivilege	2160	6c55dafc
Token: SeTcbPrivilege	2160	6c55dafc

C:\Users\Admin\AppData\Local\Temp\dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.exe
"C:\Users\Admin\AppData\Local\Temp\dcb8bcbdcc57bb3f18457c93d6da62c37d3cb305701de320ac6d4c22abcf4438.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:2804

C:\Windows\Syswow64\6c55dafc
C:\Windows\Syswow64\6c55dafc
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:2160

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

Replay Monitor

Loading Replay Monitor...

Downloads

6c55dafc

Path C:\Windows\SysWOW64\6c55dafc
Size 1.7MB
SHA256 cb836920883950eb246f6bdc9f557bda44c2fad28fddc9fb5ae1533fb76fa98b
MD5 4fa1d7d7e6ac3958d514ac8fd61cb27e
SHA1 0dea0e38a7e9097fba7640647ec97692f0482f53
SHA512 a1e6fab4fcdafa66dce2443b5d97bad3c9a18cc4867a49559b17c4b80bfb49098b8ae0c5b3f7653a94f912f95d657831703ee6f928d5ce3797382bb2758365e3
SSDEEP 24576:+vO2xJKRw2kOkx2LFRvcU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:+HHKe2WQX56/OJdJCXDrsOFZMjHfUr
TLSH
T18B858D31AAC04132E2B3867585FA56F6A9257C222721E5CF62C57B291E737D3ED3070E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2160-4-0x00000000002A0000-0x000000000032C000-memory.dmp

Download

memory/2160-20-0x0000000000F00000-0x0000000000F4A000-memory.dmp

Download

memory/2160-21-0x00000000002A0000-0x000000000032C000-memory.dmp

Download

memory/2160-45-0x00000000002A0000-0x000000000032C000-memory.dmp

Download

memory/2804-0-0x0000000000D60000-0x0000000000DEC000-memory.dmp

Download

memory/2804-18-0x0000000000D60000-0x0000000000DEC000-memory.dmp

Download

memory/2804-19-0x0000000000C00000-0x0000000000C4A000-memory.dmp

Download

memory/2804-33-0x0000000000C00000-0x0000000000C4A000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads