4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4

General

Target

4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4.exe
Size

58KB
MD5

1de64e1cf2bda73ede782673333d0e70
SHA1

5854fff0080e6d800f4dfebd0612f0b14b923882
SHA256

4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4
SHA512

e66f07b9d2a16355f61b2e8992408b6f08c8156b135b07fd9dd5f8777f28dc577f1b2e60bdb0c7abb05d7760a53b9889f21fd581a8fbb7e480b3749ba8d4933a
SSDEEP

768:+Hf+S26Iyfvcse5kzId8rH7R1fkGhg2QiGPL6QNcD3fTOZXKhB0q:yIyfvdzId8j7MGyPOZzTO6B0q

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1460	explore.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4112-132-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/memory/4112-133-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/files/0x0006000000022e6e-135.dat	upx
behavioral2/files/0x0006000000022e6e-136.dat	upx
behavioral2/memory/1460-137-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/memory/1460-138-0x0000000000400000-0x0000000000410000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\explore = "\"C:\\Windows\\system32\\explore.exe\""	explore.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\explore.exe	4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4.exe
File opened for modification	C:\Windows\SysWOW64\explore.exe	4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000c117017519ca5d4291d4ef44a43af4ed00000000020000000000106600000001000020000000fec329985532f9bcfc721f221f9aa79046fdb298d3f86b90a94ee4cb36910114000000000e8000000002000020000000e3dc2f7be7616159bcdda80bfdac872e3e5ecb6935c9bc149602ea323b580ef62000000089caf943bf46092f465b2715f97281ebfa8be9d4a8951d7ab93aa555d96f71db4000000073c76536cc1bbbd6253f57843f3fdbefacf92a24a0902bd7ef2cba3847a92ea0be4dd9174e0164bbb6f4d40fa1dc0e49352704128675e5cea856eefe733ea6c3	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = d07c50aa2b07d901	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 304903a32b07d901	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2702566952"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2702566952"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31000363"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31000363"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000c117017519ca5d4291d4ef44a43af4ed00000000020000000000106600000001000020000000d3ea1021952a3ea0f81cc5e038f9a59917e4a6ff62c0535119c738e66d3d0fec000000000e8000000002000020000000e58053347d89b8625fbffa11cab31d727ebe4e4dfbefc3f789126d71ea67bf7e200000003ff576ab1885e0ef47d9b2ee6d0194605f25cc14663d1eca6319237b0069a3ae40000000baa7791bc7ed585f99ba415096f8ded3f5be8af180972cc68a72473ef25a15e0a4ebc7e3fda6c0d7541e8054edfcf4299d0e4f47da6c8734c53376c103cb692d	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{CC64D363-731E-11ED-89AC-DA88DC7FA106} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4112	4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4.exe
4112	4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4.exe
1460	explore.exe
1460	explore.exe

Suspicious use of FindShellTrayWindow 9 IoCs

pid	Process
3964	iexplore.exe
3964	iexplore.exe
3964	iexplore.exe
3964	iexplore.exe
3964	iexplore.exe
3964	iexplore.exe
3964	iexplore.exe
3964	iexplore.exe
3964	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3964	iexplore.exe
3964	iexplore.exe
2548	IEXPLORE.EXE
2548	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4112 wrote to memory of 1460	4112	4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4.exe	80
PID 4112 wrote to memory of 1460	4112	4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4.exe	80
PID 4112 wrote to memory of 1460	4112	4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4.exe	80
PID 3964 wrote to memory of 2548	3964	iexplore.exe	83
PID 3964 wrote to memory of 2548	3964	iexplore.exe	83
PID 3964 wrote to memory of 2548	3964	iexplore.exe	83

C:\Users\Admin\AppData\Local\Temp\4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4.exe
"C:\Users\Admin\AppData\Local\Temp\4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4112
- C:\Windows\SysWOW64\explore.exe
  "C:\Windows\system32\explore.exe" -UPD step3 C:\Users\Admin\AppData\Local\Temp\4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4.exe|C:\Windows\system32\explore.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  PID:1460

C:\Program Files (x86)\Internet Explorer\ielowutil.exe
"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
1⤵
PID:1548

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3964
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3964 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2548

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\explore.exe

Filesize
58KB

MD5
1de64e1cf2bda73ede782673333d0e70

SHA1
5854fff0080e6d800f4dfebd0612f0b14b923882

SHA256
4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4

SHA512
e66f07b9d2a16355f61b2e8992408b6f08c8156b135b07fd9dd5f8777f28dc577f1b2e60bdb0c7abb05d7760a53b9889f21fd581a8fbb7e480b3749ba8d4933a

Download Submit
C:\Windows\SysWOW64\explore.exe

Filesize
58KB

MD5
1de64e1cf2bda73ede782673333d0e70

SHA1
5854fff0080e6d800f4dfebd0612f0b14b923882

SHA256
4b362a137f2a9759d152709b96db895cae84f0f96bfa747a374161d613e181c4

SHA512
e66f07b9d2a16355f61b2e8992408b6f08c8156b135b07fd9dd5f8777f28dc577f1b2e60bdb0c7abb05d7760a53b9889f21fd581a8fbb7e480b3749ba8d4933a

Download Submit
memory/1460-137-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1460-138-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4112-132-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4112-133-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads