c39befb76a0bcb43bc8c2a937f1dfe85fe0de8bd6ffbcdb85c3668599a017337

Analysis

max time kernel
123s
max time network
126s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
16/10/2023, 18:20

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

NEAS.51ff5222a4b621b97516b5cf1204a640.exe
Size

221KB
MD5

51ff5222a4b621b97516b5cf1204a640
SHA1

8e6b36d5d91aede01e33f0cf62fce39b06af6871
SHA256

c39befb76a0bcb43bc8c2a937f1dfe85fe0de8bd6ffbcdb85c3668599a017337
SHA512

347d16413472621e5c3b2bf7ee02a70bf411068d22649f13ce6a76cddbe4091da0b343b568a69015cc5d48d6882225da89041d9d8589849dbe3f9de4b9533f32
SSDEEP

3072:A4CgWgTsDAJJRjOV2/pwb5ryT5tlDhB2IFTLFZhh2D+0caj3kyRACi6x:A4Cg3JJF35tlDhB2Cn9ozjx

Score

8^/10

persistence

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Executes dropped EXE 1 IoCs

pid	Process
2556	jezwark.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\jezwark.exe	NEAS.51ff5222a4b621b97516b5cf1204a640.exe
File created	C:\PROGRA~3\Mozilla\gicylsk.dll	jezwark.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1708	NEAS.51ff5222a4b621b97516b5cf1204a640.exe
2556	jezwark.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2556	2168	taskeng.exe	29
PID 2168 wrote to memory of 2556	2168	taskeng.exe	29
PID 2168 wrote to memory of 2556	2168	taskeng.exe	29
PID 2168 wrote to memory of 2556	2168	taskeng.exe	29

C:\Users\Admin\AppData\Local\Temp\NEAS.51ff5222a4b621b97516b5cf1204a640.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.51ff5222a4b621b97516b5cf1204a640.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
PID:1708

C:\Windows\system32\taskeng.exe
taskeng.exe {D1BD9B17-1566-4B2B-AE97-08DFBDC4CDA7} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2168
- C:\PROGRA~3\Mozilla\jezwark.exe
  C:\PROGRA~3\Mozilla\jezwark.exe -yvxgvyl
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of UnmapMainImage
  PID:2556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\PROGRA~3\Mozilla\jezwark.exe

Filesize
221KB

MD5
10132ae5d23b2f987699c1f90578bac2

SHA1
cda41eef79805cf4336cd3c9cee3949f09b64659

SHA256
d244e9f5bec79595154725b4105d422374931111fea0ddd545a1f1f4aa540240

SHA512
b4e465af75743c3eeb84e9d962ac7fa8d3f08e5472f490753dc07b18a75da7f4198ba6d7e57b93ccee849beb6c3a991105803e9bd563c0b6447b1f79f39f7fbb

Download Submit
C:\PROGRA~3\Mozilla\jezwark.exe

Filesize
221KB

MD5
10132ae5d23b2f987699c1f90578bac2

SHA1
cda41eef79805cf4336cd3c9cee3949f09b64659

SHA256
d244e9f5bec79595154725b4105d422374931111fea0ddd545a1f1f4aa540240

SHA512
b4e465af75743c3eeb84e9d962ac7fa8d3f08e5472f490753dc07b18a75da7f4198ba6d7e57b93ccee849beb6c3a991105803e9bd563c0b6447b1f79f39f7fbb

Download Submit
memory/1708-0-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1708-1-0x0000000000270000-0x00000000002CB000-memory.dmp

Filesize
364KB

Download
memory/1708-2-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1708-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1708-5-0x0000000000270000-0x00000000002CB000-memory.dmp

Filesize
364KB

Download
memory/2556-8-0x0000000000280000-0x00000000002DB000-memory.dmp

Filesize
364KB

Download
memory/2556-9-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2556-11-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2556-12-0x0000000000280000-0x00000000002DB000-memory.dmp

Filesize
364KB

Download