a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115

Analysis

max time kernel
164s
max time network
209s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
05/12/2022, 10:10

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General

Target

a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe
Size

21KB
MD5

33132384cb4bf2e475c3670bf592dfb7
SHA1

61f850235516e56d4d6defe7e4777a9e85d4aac7
SHA256

a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115
SHA512

61fc4a8648a18ab2e98e09b093eb86bf5cfb7041577892103e879c629ac99288dbf352b033339a3b581a80726741ac3093a4f17e560439d556c01e39b4591b44
SSDEEP

384:gi4Xm1G9WXnsagorpzOk+xk5qRS3xooZ/Kz/l2tB8bu1w1sdzyDgTXl2:giGxAXT8EYRyvZ/Kz/l2tBha1wyDgh

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1168	svchost.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1236-55-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/1236-56-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/files/0x000b00000001232d-58.dat	upx
behavioral1/files/0x000b00000001232d-60.dat	upx
behavioral1/files/0x000b00000001232d-57.dat	upx
behavioral1/memory/1168-62-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/1168-63-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1236	a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe
1236	a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.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\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\svchost.exe"	svchost.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 1168	1236	a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe	28
PID 1236 wrote to memory of 1168	1236	a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe	28
PID 1236 wrote to memory of 1168	1236	a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe	28
PID 1236 wrote to memory of 1168	1236	a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe	28

C:\Users\Admin\AppData\Local\Temp\a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe
"C:\Users\Admin\AppData\Local\Temp\a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Users\Admin\AppData\Local\Microsoft\svchost.exe
  "C:\Users\Admin\AppData\Local\Microsoft\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:1168

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\svchost.exe

Filesize
21KB

MD5
33132384cb4bf2e475c3670bf592dfb7

SHA1
61f850235516e56d4d6defe7e4777a9e85d4aac7

SHA256
a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115

SHA512
61fc4a8648a18ab2e98e09b093eb86bf5cfb7041577892103e879c629ac99288dbf352b033339a3b581a80726741ac3093a4f17e560439d556c01e39b4591b44

Download Submit
\Users\Admin\AppData\Local\Microsoft\svchost.exe

Filesize
21KB

MD5
33132384cb4bf2e475c3670bf592dfb7

SHA1
61f850235516e56d4d6defe7e4777a9e85d4aac7

SHA256
a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115

SHA512
61fc4a8648a18ab2e98e09b093eb86bf5cfb7041577892103e879c629ac99288dbf352b033339a3b581a80726741ac3093a4f17e560439d556c01e39b4591b44

Download Submit
\Users\Admin\AppData\Local\Microsoft\svchost.exe

Filesize
21KB

MD5
33132384cb4bf2e475c3670bf592dfb7

SHA1
61f850235516e56d4d6defe7e4777a9e85d4aac7

SHA256
a4a4219549746f1d1e59b7c8851953458209bdd7ae980e9b2d99b1a4e3b9a115

SHA512
61fc4a8648a18ab2e98e09b093eb86bf5cfb7041577892103e879c629ac99288dbf352b033339a3b581a80726741ac3093a4f17e560439d556c01e39b4591b44

Download Submit
memory/1168-62-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1168-63-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1236-54-0x0000000074FD1000-0x0000000074FD3000-memory.dmp

Filesize
8KB

Download
memory/1236-55-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1236-56-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download