2655c04575180791a3e22cca82b3139076ae12b9ee335931d5e951e7fc71b934

Analysis

max time kernel
141s
max time network
125s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
05/11/2023, 06:23

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General

Target

NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe
Size

58KB
MD5

502a0c13f4627419e68395d5bdfdf410
SHA1

65aeeec78932229ec3459097b5efb38d77b61fdc
SHA256

2655c04575180791a3e22cca82b3139076ae12b9ee335931d5e951e7fc71b934
SHA512

a65372f6e17789d713954367c5da02aba92358bc3e382597975c1c07ef9305a6479957127c7639eb1a51f6f637af3b1529fcee17486526648ad192cb1ccd0c12
SSDEEP

384:+5rDuuOFpEauMLfQDb2pproT/z4m5m1GJE6Al6z8yXDTLhrwnR:MDcpEBMLfQcubV5wGE96YyXDTLdoR

Score

8^/10

evasion

Malware Config

Signatures

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2040	attrib.exe

Deletes itself 1 IoCs

pid	Process
2880	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2496	ayahost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\ayahost.exe	attrib.exe
File created	C:\Windows\Debug\ayahost.exe	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe
File opened for modification	C:\Windows\Debug\ayahost.exe	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1412	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1412 wrote to memory of 2040	1412	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe	28
PID 1412 wrote to memory of 2040	1412	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe	28
PID 1412 wrote to memory of 2040	1412	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe	28
PID 1412 wrote to memory of 2040	1412	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe	28
PID 1412 wrote to memory of 2880	1412	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe	31
PID 1412 wrote to memory of 2880	1412	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe	31
PID 1412 wrote to memory of 2880	1412	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe	31
PID 1412 wrote to memory of 2880	1412	NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe	31

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2040	attrib.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.502a0c13f4627419e68395d5bdfdf410_JC.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1412
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\ayahost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - Views/modifies file attributes
  PID:2040
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\NEAS50~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2880

C:\Windows\Debug\ayahost.exe
C:\Windows\Debug\ayahost.exe
1⤵
- Executes dropped EXE
PID:2496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Debug\ayahost.exe

Filesize
58KB

MD5
c7c0a3577947a80582ad5405decbb351

SHA1
ea17307695f7b7798f7b59ec3f2e9a7ff94d81cd

SHA256
18e4a238b490f3e28c1cb04bdd41864dc4747d9dc1d400397ed8b7eb536359d4

SHA512
e3edb1c16112c6b8971f87d5bf05047445eb052c1736837794d23b33d8d14c09f37dc7e5edb23813694c9db197505f160a1d107a9bda45d364c27f1d43320080

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C:\Windows\debug\ayahost.exe

Filesize
58KB

MD5
c7c0a3577947a80582ad5405decbb351

SHA1
ea17307695f7b7798f7b59ec3f2e9a7ff94d81cd

SHA256
18e4a238b490f3e28c1cb04bdd41864dc4747d9dc1d400397ed8b7eb536359d4

SHA512
e3edb1c16112c6b8971f87d5bf05047445eb052c1736837794d23b33d8d14c09f37dc7e5edb23813694c9db197505f160a1d107a9bda45d364c27f1d43320080

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads