fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8

Analysis

max time kernel
151s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07/11/2022, 20:51 UTC

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General

Target

fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe
Size

140KB
MD5

0cb4416aeafb245609fdde53974886ac
SHA1

a665f2feed56c97da9c3db9fd68d0a1e44fc8fa2
SHA256

fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8
SHA512

737d0d42ed872188542b85420f28cba447c05d422d7282b490f03ef390940761569a52f8f96b561aed87478dd7ab435d4ff527b682017c7a081e9e2ecc784cb6
SSDEEP

1536:0JoQjKVQrGkYAcANSU+MNG5ipzqYbCa3458X77UsMJn1ogCnzqLcTJLO01DvqKW:3QrrGkYnAS4R77UsMJn1opVwfG

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	ylbiup.exe

Executes dropped EXE 1 IoCs

pid	Process
436	ylbiup.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe

Adds Run key to start application 2 TTPs 29 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\	fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /c"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /j"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /q"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /m"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /b"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /o"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /x"	ylbiup.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /d"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /f"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /n"	fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /s"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /h"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /u"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /w"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /y"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /g"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /e"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /l"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /z"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /k"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /a"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /v"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /i"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /r"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /p"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /n"	ylbiup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylbiup = "C:\\Users\\Admin\\ylbiup.exe /t"	ylbiup.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2008	fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe
2008	fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe
436	ylbiup.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2008	fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe
2008	fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe
436	ylbiup.exe
436	ylbiup.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 436	2008	fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe	79
PID 2008 wrote to memory of 436	2008	fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe	79
PID 2008 wrote to memory of 436	2008	fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe	79

C:\Users\Admin\AppData\Local\Temp\fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe
"C:\Users\Admin\AppData\Local\Temp\fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Users\Admin\ylbiup.exe
  "C:\Users\Admin\ylbiup.exe"
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:436

Network

DNS

ns1.chopbell.com

fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe

Remote address:

8.8.8.8:53

Request

ns1.chopbell.com

IN A

Response
DNS

ns1.chopbell.net

fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe

Remote address:

8.8.8.8:53

Request

ns1.chopbell.net

IN A

Response
DNS

ns1.chopball.org

fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe

Remote address:

8.8.8.8:53

Request

ns1.chopball.org

IN A

Response
DNS

ns1.chopball.org

fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe

Remote address:

8.8.8.8:53

Request

ns1.chopball.org

IN A

Response
DNS

ns1.chopbell.biz

fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe

Remote address:

8.8.8.8:53

Request

ns1.chopbell.biz

IN A

Response
DNS

ns1.chopbell.biz

fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe

Remote address:

8.8.8.8:53

Request

ns1.chopbell.biz

IN A

Response
DNS

ns1.chopbell.info

fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe

Remote address:

8.8.8.8:53

Request

ns1.chopbell.info

IN A

Response

93.184.220.29:80

322 B
7
93.184.221.240:80

322 B
7
93.184.221.240:80

322 B
7
20.42.65.84:443

322 B
7
93.184.220.29:80

260 B
5
8.253.208.113:80

322 B
7
8.253.208.113:80

322 B
7
8.253.208.113:80

260 B
5
67.27.153.254:80

260 B
5
8.253.208.112:80

260 B
5

8.8.8.8:53

ns1.chopbell.com

dns

fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe

62 B
120 B
1
1

DNS Request

ns1.chopbell.com
8.8.8.8:53

ns1.chopbell.net

dns

fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe

62 B
135 B
1
1

DNS Request

ns1.chopbell.net
8.8.8.8:53

ns1.chopball.org

dns

fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe

124 B
288 B
2
2

DNS Request

ns1.chopball.org

DNS Request

ns1.chopball.org
8.8.8.8:53

ns1.chopbell.biz

dns

fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe

124 B
248 B
2
2

DNS Request

ns1.chopbell.biz

DNS Request

ns1.chopbell.biz
8.8.8.8:53

ns1.chopbell.info

dns

fa6828e1cedcc19289d3e030bc756486328d2a7bfc7b53804006e828fc5d36e8.exe

63 B
142 B
1
1

DNS Request

ns1.chopbell.info

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\ylbiup.exe

Filesize
140KB

MD5
5457717d28b034f08607ed2fbeebb8ee

SHA1
a4b88b76adf61770eabf729a383f2af0d6d7b889

SHA256
20549d805583fbcf435659f6f691926ae2faab36e245b2630f5b449a954b11b9

SHA512
95259549a04eca9905f3255a04bfd74e2d5295c554741ce18517c97e6fd2a46138c1d5a7e2edda33a8e1f8a5e288b715e46186f581675034f6a11e8994e47c43

Download Submit
C:\Users\Admin\ylbiup.exe

Filesize
140KB

MD5
5457717d28b034f08607ed2fbeebb8ee

SHA1
a4b88b76adf61770eabf729a383f2af0d6d7b889

SHA256
20549d805583fbcf435659f6f691926ae2faab36e245b2630f5b449a954b11b9

SHA512
95259549a04eca9905f3255a04bfd74e2d5295c554741ce18517c97e6fd2a46138c1d5a7e2edda33a8e1f8a5e288b715e46186f581675034f6a11e8994e47c43

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

MITRE ATT&CK Enterprise v6

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