fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0

General

Target
fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe
Size 560KB
Sample260418-l2a7facv7v
SHA256 fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0
MD5 05620864824720fca23f9eb435d12a65
SHA1 d0b660a26abb8fd60d292a465fc57bf747806375
SHA512 f68c8efd56be287b5ead62ce90e263c488f864d51d0532adc45c4bd8408c2339edd3c3607c0aef72b7735ee92df59cae44cc6240fab05a70ff92c38c6fbdc569
SSDEEP 6144:jWVrC1c2oonALgPLj7vf1LKlyIFVirGcEOkCybEaQRXr9HNdvOa+y8K:jkCO2zVPX7vf1LKlIsOkx2LIa+y
TLSH
T1E2C47C2AF6A0C036C4779574C4A257AAFFB1B42127204ACFA390475A1F637E2BE7531D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3188	74b25f66

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	18	114.114.114.114	4900	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe
Destination IP	19	223.5.5.5	4900	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe
Destination IP	1	114.114.114.114	4900	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe
Destination IP	2	223.5.5.5	4900	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe

Drops file in System32 directory 15 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	74b25f66
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache	74b25f66
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	74b25f66
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046	74b25f66
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8	74b25f66
File created	C:\Windows\SysWOW64\74b25f66	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	74b25f66
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	74b25f66
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content	74b25f66
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8	74b25f66
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	74b25f66
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft	74b25f66
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData	74b25f66
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	74b25f66
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046	74b25f66

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4900-0-0x00000000006D0000-0x000000000075C000-memory.dmp	upx
behavioral2/files/0x001d00000002b1eb-2.dat	upx
behavioral2/memory/3188-4-0x0000000000BC0000-0x0000000000C4C000-memory.dmp	upx
behavioral2/memory/4900-18-0x00000000006D0000-0x000000000075C000-memory.dmp	upx
behavioral2/memory/3188-20-0x0000000000BC0000-0x0000000000C4C000-memory.dmp	upx
behavioral2/memory/3188-36-0x0000000000BC0000-0x0000000000C4C000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\369468	74b25f66
File opened for modification	C:\Windows\53e3c8	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.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	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	74b25f66

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\History\CachePrefix = "Visited:"	74b25f66
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	74b25f66
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	74b25f66
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	74b25f66
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	74b25f66
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	74b25f66
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	74b25f66
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	74b25f66
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	74b25f66

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
3188	74b25f66
3188	74b25f66
3188	74b25f66
3188	74b25f66
3188	74b25f66
3188	74b25f66
3188	74b25f66
3188	74b25f66
4900	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe
4900	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe
4900	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe
4900	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe
4900	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe
4900	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4900	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe
Token: SeTcbPrivilege	4900	fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe
Token: SeDebugPrivilege	3188	74b25f66
Token: SeTcbPrivilege	3188	74b25f66

C:\Users\Admin\AppData\Local\Temp\fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.exe
"C:\Users\Admin\AppData\Local\Temp\fa0324afa29ac5297af09a1d5bf191a40b504e71bfc066aeb3b70813057a9fb0.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:4900

C:\Windows\Syswow64\74b25f66
C:\Windows\Syswow64\74b25f66
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:3188

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

74b25f66

Path C:\Windows\SysWOW64\74b25f66
Size 560KB
SHA256 24353315bae57b9eba2eaa3a9840dd4eb9e46aee57218e089254ff3a6530a7b0
MD5 043d0ea65dc31e9651001adf809a78e7
SHA1 81f958e826728f02d79096e920c138a1a0f8bbb8
SHA512 566c7d63f28ad518bb54311124e7be7b3a78766b7e323049a87160e2264a194ca43dbac78f5c985b195a2588b369feed0b5ad700de743deb42e484d801e79813
SSDEEP 6144:EWVrC1c2oonALgPLj7vf1LKlyIFVirGcEOkCybEaQRXr9HNdvOa+y8K:EkCO2zVPX7vf1LKlIsOkx2LIa+y
TLSH
T104C47C2AF6A0C036C4779574C4A257AAFFB1B42127204ACFA390475A1F637E2BE7531D
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3188-4-0x0000000000BC0000-0x0000000000C4C000-memory.dmp

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memory/3188-20-0x0000000000BC0000-0x0000000000C4C000-memory.dmp

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memory/3188-19-0x0000000002080000-0x000000000230B000-memory.dmp

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memory/3188-36-0x0000000000BC0000-0x0000000000C4C000-memory.dmp

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memory/4900-0-0x00000000006D0000-0x000000000075C000-memory.dmp

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memory/4900-18-0x00000000006D0000-0x000000000075C000-memory.dmp

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memory/4900-27-0x0000000002E50000-0x00000000030DB000-memory.dmp

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memory/4900-47-0x0000000002E50000-0x00000000030DB000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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