909aac331e27feee68dd9943af466e7883311fb4ecd37fc929a3b61b6553afcd

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
01-08-2024 21:29

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General

Target

057e8e525e0103040c50443808653800N.exe
Size

79KB
MD5

057e8e525e0103040c50443808653800
SHA1

7a3bf03dbe7f09bcf417959f78b5c05f1abf8b56
SHA256

909aac331e27feee68dd9943af466e7883311fb4ecd37fc929a3b61b6553afcd
SHA512

11558ae13eff229491933d642f3de57fe6dc5dce4da09d7facee85e5e140d46102f57563d680c04178f8ac1070c8b8557a8d054f3efbb0aeeaa2e950df1d8654
SSDEEP

1536:RLFbQafrACEVLUQ/HItWt68/gQGSdsGizbR9XwzA:Jf8CE/HIM68/gtSsBPvwE

Score

7^/10

defense_evasion discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2688	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2180	jaohost.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\jaohost.exe	057e8e525e0103040c50443808653800N.exe
File opened for modification	C:\Windows\Debug\jaohost.exe	057e8e525e0103040c50443808653800N.exe

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 3 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	057e8e525e0103040c50443808653800N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaohost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	jaohost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	jaohost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3036	057e8e525e0103040c50443808653800N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 2688	3036	057e8e525e0103040c50443808653800N.exe	31
PID 3036 wrote to memory of 2688	3036	057e8e525e0103040c50443808653800N.exe	31
PID 3036 wrote to memory of 2688	3036	057e8e525e0103040c50443808653800N.exe	31
PID 3036 wrote to memory of 2688	3036	057e8e525e0103040c50443808653800N.exe	31

C:\Users\Admin\AppData\Local\Temp\057e8e525e0103040c50443808653800N.exe
"C:\Users\Admin\AppData\Local\Temp\057e8e525e0103040c50443808653800N.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\057E8E~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2688

C:\Windows\Debug\jaohost.exe
C:\Windows\Debug\jaohost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
PID:2180

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

Query Registry

T1012

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:\Windows\debug\jaohost.exe

Filesize
79KB

MD5
05050d9f6b2b2ea2241ffe1d58687ffa

SHA1
ccef250f02b114f537f8713536ae9f46d812dca9

SHA256
6a28173fcc123f9f310535d5b38eb7c388ae2ff3a4cdf1884d93e83cb388bca4

SHA512
698a821385e489468d60d3c03af632240b2fe0c896e775c86eff28d81bcb2f3ede5657c4a1e38129ff0644e66175885176dd9fb7a5de80b5bbbc185acb4d3502

Download Submit
memory/3036-0-0x0000000010000000-0x000000001000A000-memory.dmp

Filesize
40KB

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