a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921

General

Target
a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe
Size 2.9MB
Sample260731-fbxpvswtaz
SHA256 a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921
MD5 d352f4bd3c2c85306861e4d87b368f7b
SHA1 7e97c2a142c07692ef98d86aeec0ce26acd29015
SHA512 0872781865689a9648ca623084d85f81f385eeb1359dee353e093b7929624d5210d843fac5fe0d19b832f81f8340d1808ec3e12338ac6cb5aba1321271fa2c02
SSDEEP 49152:WHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtS0rQMYOF:WnKGEkOhCXHHFZMjHfUKkVWsM0r1F
TLSH
T163D59E31B6818036D1B7467186FA47BBA5257C211721A5CFB3C47B2A1FB36D2AE3170E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1064	9a7dcac9

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	4	223.5.5.5	4540	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe
Destination IP	30	114.114.114.114	4540	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe
Destination IP	31	223.5.5.5	4540	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe
Destination IP	3	114.114.114.114	4540	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	9a7dcac9
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	9a7dcac9
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	9a7dcac9
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	9a7dcac9
File created	C:\Windows\SysWOW64\9a7dcac9	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/4540-0-0x00000000009A0000-0x0000000000A2C000-memory.dmp	upx
behavioral1/files/0x0016000000024314-3.dat	upx
behavioral1/memory/1064-4-0x0000000000F40000-0x0000000000FCC000-memory.dmp	upx
behavioral1/memory/4540-10-0x00000000009A0000-0x0000000000A2C000-memory.dmp	upx
behavioral1/memory/1064-11-0x0000000000F40000-0x0000000000FCC000-memory.dmp	upx
behavioral1/memory/1064-19-0x0000000000F40000-0x0000000000FCC000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\123750	9a7dcac9
File opened for modification	C:\Windows\4db9f8	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.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	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9a7dcac9

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	9a7dcac9
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	9a7dcac9
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	9a7dcac9
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	9a7dcac9
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	9a7dcac9
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	9a7dcac9
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	9a7dcac9
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	9a7dcac9

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1064	9a7dcac9
1064	9a7dcac9
1064	9a7dcac9
1064	9a7dcac9
1064	9a7dcac9
1064	9a7dcac9
1064	9a7dcac9
1064	9a7dcac9
4540	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe
4540	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe
4540	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe
4540	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe
4540	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe
4540	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4540	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe
Token: SeTcbPrivilege	4540	a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe
Token: SeDebugPrivilege	1064	9a7dcac9
Token: SeTcbPrivilege	1064	9a7dcac9

C:\Users\Admin\AppData\Local\Temp\a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.exe
"C:\Users\Admin\AppData\Local\Temp\a25034301229e1fb58236829dd8162e37ba9b498a0a92010177ce00f9306c921.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:4540

C:\Windows\Syswow64\9a7dcac9
C:\Windows\Syswow64\9a7dcac9
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:1064

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

9a7dcac9

Path C:\Windows\SysWOW64\9a7dcac9
Size 2.9MB
SHA256 e6bdc161543940438b2cba7b5731684d18e7dddd467f691050b55260b8c7bdba
MD5 798e9369bb9a90ed385474fa8b1f00c8
SHA1 e51f00b7ed7820fb27541d40e9cd5d0ca1b1f009
SHA512 0b58b2a947c1b7bc96e3369069bdccf097e4207f95f290899f66d215d0cbd34f45f9c664b6aa623b3fd07230a1c39904ab83964c75f933cb6e03f3bd1af2f4c2
SSDEEP 49152:7HHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtS0rQMYOF:7nKGEkOhCXHHFZMjHfUKkVWsM0r1F
TLSH
T115D59E31B6818036D1B7467186FA47BBA5257C211721A5CFB3C47B2A1FB36D2AE3170E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1064-4-0x0000000000F40000-0x0000000000FCC000-memory.dmp

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memory/1064-11-0x0000000000F40000-0x0000000000FCC000-memory.dmp

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memory/1064-19-0x0000000000F40000-0x0000000000FCC000-memory.dmp

Download

memory/4540-0-0x00000000009A0000-0x0000000000A2C000-memory.dmp

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memory/4540-10-0x00000000009A0000-0x0000000000A2C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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