arkei

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General

Target

e5cf31523f01f3791bf0d2dbf2a232c4.exe
Size

180KB
Sample

210929-d3mmvsdfbj
MD5

e5cf31523f01f3791bf0d2dbf2a232c4
SHA1

d992d4c7ff035d4dc730620924625d58be4bd4a6
SHA256

e312af68203fd80a2dd86a69460941ce29709424310abffd66fd7323a2b8ef6e
SHA512

83df9bc5351733b06adaa04f35bd3027c13ad995ea7bfde9c5ec60405c92bc5174718b80c54d1393917b3039efc26b09620807b5a995154902b3572ac3dda06c

Malware Config

Extracted

Family

smokeloader

Version

2020

http://naghenrietti1.top/

http://kimballiett2.top/

http://xadriettany3.top/

http://jebeccallis4.top/

http://nityanneron5.top/

http://umayaniela6.top/

http://lynettaram7.top/

http://sadineyalas8.top/

http://geenaldencia9.top/

http://aradysiusep10.top/

rc4.i32

Extracted

Family

redline

92.246.89.6:38437

Extracted

Family

redline

Botnet

z0rm1onbuild

45.156.21.209:56326

Extracted

Family

redline

Botnet

777777

193.56.146.60:18243

Extracted

Family

raccoon

Botnet

5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4

Attributes

url4cnc
https://t.me/agrybirdsgamerept

rc4.plain

Targets

- Target
  
  e5cf31523f01f3791bf0d2dbf2a232c4.exe
- Size
  
  180KB
- MD5
  
  e5cf31523f01f3791bf0d2dbf2a232c4
- SHA1
  
  d992d4c7ff035d4dc730620924625d58be4bd4a6
- SHA256
  
  e312af68203fd80a2dd86a69460941ce29709424310abffd66fd7323a2b8ef6e
- SHA512
  
  83df9bc5351733b06adaa04f35bd3027c13ad995ea7bfde9c5ec60405c92bc5174718b80c54d1393917b3039efc26b09620807b5a995154902b3572ac3dda06c
Score

10^/10

raccoon redline smokeloader tofsee xmrig 5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4 777777 z0rm1onbuild backdoor discovery evasion infostealer miner persistence spyware stealer suricata themida trojan upx arkei agilenet
- Arkei
  Arkei is an infostealer written in C++.
  stealer arkei
- Modifies Windows Defender Real-time Protection settings
  evasion trojan
- Raccoon
  Simple but powerful infostealer which was very active in 2019.
  stealer raccoon
- RedLine
  RedLine Stealer is a malware family written in C#, first appearing in early 2020.
  infostealer redline
- RedLine Payload
- SmokeLoader
  Modular backdoor trojan in use since 2014.
  trojan backdoor smokeloader
- Tofsee
  Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
  trojan tofsee
- Turns off Windows Defender SpyNet reporting
  evasion
- Windows security bypass
  evasion trojan
- suricata: ET MALWARE Amadey CnC Check-In
  suricata: ET MALWARE Amadey CnC Check-In
  suricata
- suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
  suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
  suricata
- suricata: ET MALWARE Sharik/Smoke CnC Beacon 11
  suricata: ET MALWARE Sharik/Smoke CnC Beacon 11
  suricata
- suricata: ET MALWARE Win32.Raccoon Stealer CnC Activity (dependency download)
  suricata: ET MALWARE Win32.Raccoon Stealer CnC Activity (dependency download)
  suricata
- suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt
  suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt
  suricata
- xmrig
  XMRig is a high performance, open source, cross platform CPU/GPU miner.
  miner xmrig
- Arkei Stealer Payload
  stealer
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
  evasion
- Nirsoft
- XMRig Miner Payload
  miner
- Creates new service(s)
  persistence
- Downloads MZ/PE file
- Executes dropped EXE
- Modifies Windows Firewall
  evasion
- Sets service image path in registry
  persistence
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- Deletes itself
- Drops startup file
- Loads dropped DLL
- Obfuscated with Agile.Net obfuscator
  Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
  agilenet
- Reads user/profile data of local email clients
  Email clients store some user data on disk where infostealers will often target it.
  spyware stealer
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Themida packer
  Detects Themida, an advanced Windows software protection system.
  themida
- Windows security modification
  evasion trojan
- Accesses cryptocurrency files/wallets, possible credential harvesting
  spyware
- Adds Run key to start application
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Checks whether UAC is enabled
  evasion trojan
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
behavioral1 behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

New Service

T1050

Registry Run Keys / Startup Folder

T1060

Hidden Files and Directories

T1158

Privilege Escalation

New Service

T1050

Defense Evasion

Modify Registry

T1112

Disabling Security Tools

T1089

Virtualization/Sandbox Evasion

T1497

Install Root Certificate

T1130

Hidden Files and Directories

T1158

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Tasks

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Extracted

Extracted

Targets

Modifies Windows Defender Real-time Protection settings

Raccoon

RedLine

RedLine Payload

SmokeLoader

Tofsee

Turns off Windows Defender SpyNet reporting

Windows security bypass

suricata: ET MALWARE Amadey CnC Check-In

suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)

suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

suricata: ET MALWARE Win32.Raccoon Stealer CnC Activity (dependency download)

suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt

xmrig

Arkei Stealer Payload

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Nirsoft

XMRig Miner Payload

Creates new service(s)

Downloads MZ/PE file

Executes dropped EXE

Modifies Windows Firewall

Sets service image path in registry

UPX packed file

Checks BIOS information in registry

Deletes itself

Drops startup file

Loads dropped DLL

Obfuscated with Agile.Net obfuscator

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Themida packer

Windows security modification

Accesses cryptocurrency files/wallets, possible credential harvesting

Adds Run key to start application

Checks installed software on the system

Checks whether UAC is enabled

Enumerates connected drives

Drops file in System32 directory

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Tasks

static1

behavioral1

behavioral2