83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9

General

Target
83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe
Size 615KB
Sample260419-zygrpsft4v
SHA256 83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9
MD5 bf7a3b0184d9c906f7b62c4ffd3d33d1
SHA1 5691086badc4b483d937ff614a7c8638dfe53cd2
SHA512 c081dcfb599f12a2d895779fa30572e7010dfbb08a3ad01512c62ad4e6bb204bed962a70fc56cb27bdbfd27b1dc973a8f72fd1bd28d91fe863f760c7fe2144a3
SSDEEP 12288:sSvO2x9mONvKRILSFnOkx2LIax5FAQjU/Liw:fvO2xJKRI2FOkx2LFicUV
TLSH
T103D44A31E241C03AD4A74576C6FA0BAFE5647D25531165CBA3C43A2A2FB36D2BE3170E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2392	5169cfb0

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	1	114.114.114.114	3376	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe
Destination IP	2	223.5.5.5	3376	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe
Destination IP	16	114.114.114.114	3376	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe
Destination IP	17	223.5.5.5	3376	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe

Drops file in System32 directory 15 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8	5169cfb0
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	5169cfb0
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content	5169cfb0
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046	5169cfb0
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft	5169cfb0
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	5169cfb0
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	5169cfb0
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache	5169cfb0
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	5169cfb0
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046	5169cfb0
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8	5169cfb0
File created	C:\Windows\SysWOW64\5169cfb0	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	5169cfb0
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData	5169cfb0
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	5169cfb0

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\28f3b0	5169cfb0
File opened for modification	C:\Windows\39cc60	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.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	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5169cfb0

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	5169cfb0
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	5169cfb0
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	5169cfb0
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	5169cfb0
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	5169cfb0
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	5169cfb0
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	5169cfb0
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	5169cfb0
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	5169cfb0

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2392	5169cfb0
2392	5169cfb0
2392	5169cfb0
2392	5169cfb0
2392	5169cfb0
2392	5169cfb0
2392	5169cfb0
2392	5169cfb0
3376	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe
3376	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe
3376	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe
3376	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe
3376	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe
3376	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3376	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe
Token: SeTcbPrivilege	3376	83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe
Token: SeDebugPrivilege	2392	5169cfb0
Token: SeTcbPrivilege	2392	5169cfb0

C:\Users\Admin\AppData\Local\Temp\83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.exe
"C:\Users\Admin\AppData\Local\Temp\83607d830398fefed374f99863a64e536c259f8070f27ce05a0045fca7c28cc9.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:3376

C:\Windows\Syswow64\5169cfb0
C:\Windows\Syswow64\5169cfb0
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:2392

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

5169cfb0

Path C:\Windows\SysWOW64\5169cfb0
Size 615KB
SHA256 6e8ed7fde85f27ba964f8d7d82e2b0a1feb3d775b88c8ea3ae04067e9048827b
MD5 c289ff6b2eca1646b23a914724d912f7
SHA1 7c92044850583247ba62d8d1fd5947b774dccb5f
SHA512 ffa2d700b29e0294643a9d495d91737e1b077c9fbf1f27c0627f5f32a35d6896575506322e7c9c113c43f4798b582fe05ec61228866601919501725689087841
SSDEEP 12288:pSvO2x9mONvKRILSFnOkx2LIax5FAQjU/Liw:QvO2xJKRI2FOkx2LFicUV
TLSH
T1A4D44A31E241C03AD4A74576C6FA0BAFE5647D25531165CBA3C43A2A2FB36D2BE3170E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2392-4-0x0000000000400000-0x0000000000463000-memory.dmp

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memory/2392-19-0x00000000006E0000-0x0000000000744000-memory.dmp

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memory/3376-0-0x0000000000400000-0x0000000000463000-memory.dmp

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memory/3376-18-0x00000000009F0000-0x0000000000A54000-memory.dmp

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memory/3376-31-0x00000000009F0000-0x0000000000A54000-memory.dmp

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memory/3376-43-0x00000000009F0000-0x0000000000A54000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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