a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9

General

Target
a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe
Size 638KB
Sample260424-c8mz5sds91
SHA256 a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9
MD5 629e11294f28f090ba6452004cb10b50
SHA1 148649b481d07c31c4f7eac983e53313441b05a0
SHA512 321099f4adbd03041886bfb157e44e997ce98bc8314f7d6ee54533cb634be30c949de0de7c431ad417a9b902e9d3bbfc5e76826ff66425f4d53f90389d46bfd2
SSDEEP 6144:XcTgav1cdCTuoPbgwmOLJvKRhLSFXdFwirGcEOkCybEaQRXr9HNdvOaey8KK5R2:XSvO2x9mONvKRhLSFtsOkx2LIaeyk5g
TLSH
T145D46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3108	f94f8ca5

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	11	223.5.5.5	956	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe
Destination IP	1	114.114.114.114	956	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe
Destination IP	2	223.5.5.5	956	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe
Destination IP	10	114.114.114.114	956	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe

Drops file in System32 directory 11 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\f94f8ca5	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	f94f8ca5
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft	f94f8ca5
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache	f94f8ca5
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	f94f8ca5
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	f94f8ca5
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	f94f8ca5
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	f94f8ca5
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	f94f8ca5
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData	f94f8ca5
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content	f94f8ca5

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/956-0-0x00000000001E0000-0x000000000026C000-memory.dmp	upx
behavioral2/files/0x0008000000000436-2.dat	upx
behavioral2/memory/3108-3-0x00000000008B0000-0x000000000093C000-memory.dmp	upx
behavioral2/memory/956-12-0x00000000001E0000-0x000000000026C000-memory.dmp	upx
behavioral2/memory/3108-14-0x00000000008B0000-0x000000000093C000-memory.dmp	upx
behavioral2/memory/3108-31-0x00000000008B0000-0x000000000093C000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\3535c8	f94f8ca5
File opened for modification	C:\Windows\105df8	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.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	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f94f8ca5

Modifies data under HKEY_USERS 9 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	f94f8ca5
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	f94f8ca5
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	f94f8ca5
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	f94f8ca5
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	f94f8ca5
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	f94f8ca5
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	f94f8ca5
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	f94f8ca5
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	f94f8ca5

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
3108	f94f8ca5
3108	f94f8ca5
3108	f94f8ca5
3108	f94f8ca5
3108	f94f8ca5
3108	f94f8ca5
3108	f94f8ca5
3108	f94f8ca5
956	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe
956	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe
956	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe
956	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe
956	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe
956	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	956	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe
Token: SeTcbPrivilege	956	a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe
Token: SeDebugPrivilege	3108	f94f8ca5
Token: SeTcbPrivilege	3108	f94f8ca5

C:\Users\Admin\AppData\Local\Temp\a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.exe
"C:\Users\Admin\AppData\Local\Temp\a09105f46cedf7399126a9836cd1eb02d5eaae5e4f46f3d7d603f2cfed7ee1f9.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:956

C:\Windows\Syswow64\f94f8ca5
C:\Windows\Syswow64\f94f8ca5
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:3108

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

f94f8ca5

Path C:\Windows\SysWOW64\f94f8ca5
Size 638KB
SHA256 9e674c000ce975315de6d7eeb5d9fcd8d1c639c16f8a028e4f27e969e9c5dfba
MD5 cb066207c2ffc1f5d7c71c11f3baf55a
SHA1 749722f3c5c466cadd998fccda1668519bbf5b62
SHA512 645983c9636c4ba1f3c5c9f6a8d50c638ee3001fcb161b7558ce15b076c0108c1594bfc675e4d0e6c1aacbf5e610919bfb2d9cd188d4fe1bd5b038cf3a632da7
SSDEEP 6144:ccTgav1cdCTuoPbgwmOLJvKRhLSFXdFwirGcEOkCybEaQRXr9HNdvOaey8KK5R2:cSvO2x9mONvKRhLSFtsOkx2LIaeyk5g
TLSH
T134D46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/956-0-0x00000000001E0000-0x000000000026C000-memory.dmp

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memory/956-12-0x00000000001E0000-0x000000000026C000-memory.dmp

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memory/956-24-0x00000000028F0000-0x0000000002B7B000-memory.dmp

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memory/956-37-0x00000000028F0000-0x0000000002B7B000-memory.dmp

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memory/3108-3-0x00000000008B0000-0x000000000093C000-memory.dmp

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memory/3108-14-0x00000000008B0000-0x000000000093C000-memory.dmp

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memory/3108-13-0x0000000001CF0000-0x0000000001F7B000-memory.dmp

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memory/3108-31-0x00000000008B0000-0x000000000093C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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