1023b92bbb4164374d46bf060542dc5ecaf328a107ad3e95a2480437d161ec57

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
06/10/2024, 10:55

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General

Target

1023b92bbb4164374d46bf060542dc5ecaf328a107ad3e95a2480437d161ec57.exe
Size

2.6MB
MD5

2645613a023e767350badacdeb59ff28
SHA1

8c5cb46157fd7874b2b28392870d7d5d6bb10fc4
SHA256

1023b92bbb4164374d46bf060542dc5ecaf328a107ad3e95a2480437d161ec57
SHA512

4594451eb5b65897d6b399cbeea707e6a2809fa452aa6b0c83b5c6eba7e3a27530b4d9196a494d3be0f172772e85f7d63057f65ae34705d617735860b1975305
SSDEEP

49152:yTGkQy5QZuTtS0rQMYOQ+q8CE0TG4QnTGHQc9KFeM:yKkVWsM0r1QnDK4uKHT0Fe

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2992	4c136000

Unexpected DNS network traffic destination 16 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	223.5.5.5
Destination IP	114.114.114.114
Destination IP	223.5.5.5
Destination IP	114.114.114.114
Destination IP	114.114.114.114
Destination IP	223.5.5.5
Destination IP	223.5.5.5
Destination IP	114.114.114.114
Destination IP	114.114.114.114
Destination IP	114.114.114.114
Destination IP	114.114.114.114
Destination IP	223.5.5.5
Destination IP	223.5.5.5
Destination IP	223.5.5.5
Destination IP	114.114.114.114
Destination IP	223.5.5.5

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\Syswow64\4c136000	1023b92bbb4164374d46bf060542dc5ecaf328a107ad3e95a2480437d161ec57.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	4c136000
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015	4c136000
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015	4c136000
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357	4c136000
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357	4c136000

UPX packed file 17 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2328-0-0x0000000000D70000-0x0000000000DF9000-memory.dmp	upx
behavioral1/files/0x000900000001225f-2.dat	upx
behavioral1/memory/2992-3-0x0000000000D80000-0x0000000000E09000-memory.dmp	upx
behavioral1/memory/2328-477-0x0000000000D70000-0x0000000000DF9000-memory.dmp	upx
behavioral1/memory/2992-564-0x0000000000D80000-0x0000000000E09000-memory.dmp	upx
behavioral1/memory/2992-563-0x0000000000D80000-0x0000000000E09000-memory.dmp	upx
behavioral1/memory/2992-820-0x0000000000D80000-0x0000000000E09000-memory.dmp	upx
behavioral1/memory/2328-1869-0x0000000000D70000-0x0000000000DF9000-memory.dmp	upx
behavioral1/memory/2992-1870-0x0000000000D80000-0x0000000000E09000-memory.dmp	upx
behavioral1/memory/2328-2015-0x0000000000D70000-0x0000000000DF9000-memory.dmp	upx
behavioral1/memory/2992-2016-0x0000000000D80000-0x0000000000E09000-memory.dmp	upx
behavioral1/memory/2992-2757-0x0000000000D80000-0x0000000000E09000-memory.dmp	upx
behavioral1/memory/2992-2779-0x0000000000D80000-0x0000000000E09000-memory.dmp	upx
behavioral1/memory/2328-3927-0x0000000000D70000-0x0000000000DF9000-memory.dmp	upx
behavioral1/memory/2328-4369-0x0000000000D70000-0x0000000000DF9000-memory.dmp	upx
behavioral1/memory/2328-4478-0x0000000000D70000-0x0000000000DF9000-memory.dmp	upx
behavioral1/memory/2328-4771-0x0000000000D70000-0x0000000000DF9000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\333960	4c136000
File opened for modification	C:\Windows\27db30	1023b92bbb4164374d46bf060542dc5ecaf328a107ad3e95a2480437d161ec57.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	1023b92bbb4164374d46bf060542dc5ecaf328a107ad3e95a2480437d161ec57.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4c136000

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CRLs	4c136000
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\Certificates	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CTLs	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CRLs	4c136000
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7a-3f-15-10-08-b0\WpadDecisionReason = "1"	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CTLs	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\Certificates	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CTLs	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\Certificates	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CRLs	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\Certificates	4c136000
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\Certificates	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7a-3f-15-10-08-b0	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CTLs	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\Certificates	4c136000
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7a-3f-15-10-08-b0\WpadDecisionTime = 80b17544de17db01	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	4c136000
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7a-3f-15-10-08-b0\WpadDecision = "0"	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CTLs	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CRLs	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A52072B9-8B73-4E94-8029-23B5C4D705E4}\7a-3f-15-10-08-b0	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CRLs	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CTLs	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CRLs	4c136000
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0193000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	4c136000
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	4c136000
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	4c136000
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\Certificates	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CTLs	4c136000
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A52072B9-8B73-4E94-8029-23B5C4D705E4}\WpadNetworkName = "Network 3"	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A52072B9-8B73-4E94-8029-23B5C4D705E4}	4c136000
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A52072B9-8B73-4E94-8029-23B5C4D705E4}\WpadDecisionTime = 80b17544de17db01	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CTLs	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	4c136000
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	4c136000
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\Certificates	4c136000
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A52072B9-8B73-4E94-8029-23B5C4D705E4}\WpadDecisionReason = "1"	4c136000
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A52072B9-8B73-4E94-8029-23B5C4D705E4}\WpadDecision = "0"	4c136000
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	4c136000
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs	4c136000
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	4c136000

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2992	4c136000
2992	4c136000
2992	4c136000
2992	4c136000
2328	1023b92bbb4164374d46bf060542dc5ecaf328a107ad3e95a2480437d161ec57.exe
2328	1023b92bbb4164374d46bf060542dc5ecaf328a107ad3e95a2480437d161ec57.exe
2328	1023b92bbb4164374d46bf060542dc5ecaf328a107ad3e95a2480437d161ec57.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2328	1023b92bbb4164374d46bf060542dc5ecaf328a107ad3e95a2480437d161ec57.exe
Token: SeTcbPrivilege	2328	1023b92bbb4164374d46bf060542dc5ecaf328a107ad3e95a2480437d161ec57.exe
Token: SeDebugPrivilege	2992	4c136000
Token: SeTcbPrivilege	2992	4c136000

C:\Users\Admin\AppData\Local\Temp\1023b92bbb4164374d46bf060542dc5ecaf328a107ad3e95a2480437d161ec57.exe
"C:\Users\Admin\AppData\Local\Temp\1023b92bbb4164374d46bf060542dc5ecaf328a107ad3e95a2480437d161ec57.exe"
1⤵
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2328

C:\Windows\Syswow64\4c136000
C:\Windows\Syswow64\4c136000
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:2992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\4c136000

Filesize
2.6MB

MD5
64da00a38e4ef7c952acd06a582b662e

SHA1
5215790a89c8a9f26a9e904d591ea33f26faaf8e

SHA256
7c408bf075941b656669c9721e1770f74e8b12aa70d4f147263275b218d49787

SHA512
2ce611f8a78942db0ad60e5cadde8e31d44dadbd884d7e2d29b6ac558cef7c6cb7e28fa440f89b65e663dae87bafd1c71aeb197fab873fd4e9a1f4569df144c5

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
1KB

MD5
a266bb7dcc38a562631361bbf61dd11b

SHA1
3b1efd3a66ea28b16697394703a72ca340a05bd5

SHA256
df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

SHA512
0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
242B

MD5
7f417df8fc760e62add9a07c74ba703f

SHA1
259355d686c29e477a8bc341021bc926ae932b9f

SHA256
0996bba220c5b1a9daffa5030bd733f922741450a2f570451014603221342126

SHA512
1660624d4ac5fb04db67b19a832833c90ffc96eae04f39a0a1fafddbce35ab592f971d1ce834a1e332862085e307e3501da1513d30d04c38f0ae22b8fbd90835

Download Submit
C:\Windows\Temp\TarFA4B.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2328-4771-0x0000000000D70000-0x0000000000DF9000-memory.dmp

Filesize
548KB

Download
memory/2328-2015-0x0000000000D70000-0x0000000000DF9000-memory.dmp

Filesize
548KB

Download
memory/2328-477-0x0000000000D70000-0x0000000000DF9000-memory.dmp

Filesize
548KB

Download
memory/2328-4478-0x0000000000D70000-0x0000000000DF9000-memory.dmp

Filesize
548KB

Download
memory/2328-4369-0x0000000000D70000-0x0000000000DF9000-memory.dmp

Filesize
548KB

Download
memory/2328-0-0x0000000000D70000-0x0000000000DF9000-memory.dmp

Filesize
548KB

Download
memory/2328-1869-0x0000000000D70000-0x0000000000DF9000-memory.dmp

Filesize
548KB

Download
memory/2328-3927-0x0000000000D70000-0x0000000000DF9000-memory.dmp

Filesize
548KB

Download
memory/2992-820-0x0000000000D80000-0x0000000000E09000-memory.dmp

Filesize
548KB

Download
memory/2992-2016-0x0000000000D80000-0x0000000000E09000-memory.dmp

Filesize
548KB

Download
memory/2992-2757-0x0000000000D80000-0x0000000000E09000-memory.dmp

Filesize
548KB

Download
memory/2992-2779-0x0000000000D80000-0x0000000000E09000-memory.dmp

Filesize
548KB

Download
memory/2992-1870-0x0000000000D80000-0x0000000000E09000-memory.dmp

Filesize
548KB

Download
memory/2992-563-0x0000000000D80000-0x0000000000E09000-memory.dmp

Filesize
548KB

Download
memory/2992-564-0x0000000000D80000-0x0000000000E09000-memory.dmp

Filesize
548KB

Download
memory/2992-3-0x0000000000D80000-0x0000000000E09000-memory.dmp

Filesize
548KB

Download