5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2

Analysis

max time kernel
141s
max time network
120s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
23/08/2024, 21:20

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General

Target

5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Size

176KB
MD5

14d0ff15f0af156ac70bfe66d080aadb
SHA1

9c372cdd1ee5925efb1828d399a05a0bc755db2f
SHA256

5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2
SHA512

1aa7a99b3d586ee0044df6a3d2d8b00b3fffdf35730d8661df6e0a3070db1d76396e10f690e40aa1d0f0b31443c99cb871f4f0491aa284c31fcccd895f679e8e
SSDEEP

3072:H86wLHW98aGEbxeE5hf1jNi+FnA8PJi7K9tOa9txNoK/Gm52222222222222:lwK97FbwEFBxruKrOarxNP

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2028	SearchIndexerDB.exe
2888	SearchIndexerDB.exe

Loads dropped DLL 4 IoCs

pid	Process
1668	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
1668	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
1668	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
2028	SearchIndexerDB.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1668-0-0x0000000000E10000-0x0000000000E78000-memory.dmp	upx
behavioral1/files/0x000600000001925c-24.dat	upx
behavioral1/memory/1668-27-0x0000000000E10000-0x0000000000E78000-memory.dmp	upx
behavioral1/memory/2888-28-0x0000000001150000-0x00000000011B8000-memory.dmp	upx
behavioral1/memory/1668-20-0x00000000030C0000-0x0000000003128000-memory.dmp	upx
behavioral1/memory/2028-29-0x0000000001150000-0x00000000011B8000-memory.dmp	upx

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

System Information Discovery
T1082

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	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SearchIndexerDB.exe

Modifies registry class 28 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\cmos\shell\open	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\cmos\ = "Application"	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\cmos\shell\open\command\IsolatedCommand = "\"%1\" %*"	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.exe\ = "cmos"	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\cmos\shell\open\command	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\cmos\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Posix\\SearchIndexerDB.exe\" /START \"%1\" %*"	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\cmos\shell\runas\command	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.exe	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.exe\shell\runas	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\cmos\shell	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.exe\Content-Type = "application/x-msdownload"	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.exe\DefaultIcon\ = "%1"	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.exe\shell\open\command	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.exe\shell\open\command\IsolatedCommand = "\"%1\" %*"	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\cmos\shell\runas	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\cmos\shell\runas\command\IsolatedCommand = "\"%1\" %*"	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.exe\shell	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.exe\DefaultIcon	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.exe\shell\runas\command	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\cmos	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\cmos\Content-Type = "application/x-msdownload"	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\cmos\DefaultIcon	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.exe\shell\runas\command\ = "\"%1\" %*"	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.exe\shell\runas\command\IsolatedCommand = "\"%1\" %*"	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\cmos\DefaultIcon\ = "%1"	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\cmos\shell\runas\command\ = "\"%1\" %*"	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.exe\shell\open	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.exe\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Posix\\SearchIndexerDB.exe\" /START \"%1\" %*"	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2028	SearchIndexerDB.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 2028	1668	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe	30
PID 1668 wrote to memory of 2028	1668	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe	30
PID 1668 wrote to memory of 2028	1668	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe	30
PID 1668 wrote to memory of 2028	1668	5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe	30
PID 2028 wrote to memory of 2888	2028	SearchIndexerDB.exe	31
PID 2028 wrote to memory of 2888	2028	SearchIndexerDB.exe	31
PID 2028 wrote to memory of 2888	2028	SearchIndexerDB.exe	31
PID 2028 wrote to memory of 2888	2028	SearchIndexerDB.exe	31

C:\Users\Admin\AppData\Local\Temp\5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe
"C:\Users\Admin\AppData\Local\Temp\5bf51f07737d2ade121fffa2a77e4d582d3adeb68d39d1c4bdd8a247c51e0dd2.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Users\Admin\AppData\Roaming\Microsoft\Posix\SearchIndexerDB.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Posix\SearchIndexerDB.exe" /START "C:\Users\Admin\AppData\Roaming\Microsoft\Posix\SearchIndexerDB.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Users\Admin\AppData\Roaming\Microsoft\Posix\SearchIndexerDB.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Posix\SearchIndexerDB.exe"
    3⤵
    - Executes dropped EXE
    PID:2888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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:\Users\Admin\AppData\Roaming\Microsoft\Posix\SearchIndexerDB.exe

Filesize
176KB

MD5
fa39cb92cc4b8ce5cf4321ec0ac0aeac

SHA1
9be47b3775218f9c8b0504e7062481b15dceb193

SHA256
b75e84219e0d23bcfc057e7c83c17fd34f38447238ae49dfbd323ca689aa1836

SHA512
9d819d56e8bdc5f573288f3253b02b47834c3a12498daf99da144689e6b60a1dbc816312b94d862451b2cb9a6c3da56aabaadfdc3c233e0f5e0e8f34ce1830ee

Download Submit
memory/1668-0-0x0000000000E10000-0x0000000000E78000-memory.dmp

Filesize
416KB

Download
memory/1668-27-0x0000000000E10000-0x0000000000E78000-memory.dmp

Filesize
416KB

Download
memory/1668-22-0x00000000030C0000-0x0000000003128000-memory.dmp

Filesize
416KB

Download
memory/1668-20-0x00000000030C0000-0x0000000003128000-memory.dmp

Filesize
416KB

Download
memory/1668-15-0x0000000000C70000-0x0000000000C80000-memory.dmp

Filesize
64KB

Download
memory/2028-29-0x0000000001150000-0x00000000011B8000-memory.dmp

Filesize
416KB

Download
memory/2888-28-0x0000000001150000-0x00000000011B8000-memory.dmp

Filesize
416KB

Download