redline | cc355fc1b46dccf580e160778acdfd476c848f22acdeeafd8e5dac7c8f734913

Analysis

max time kernel
104s
max time network
108s
platform
windows7_x64
resource
win7-20220715-en
resource tags

arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
submitted
18/07/2022, 10:16

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General

Target
swift pdf.exe
Size 739KB
Sample220718-massvabdc6
SHA256 cc355fc1b46dccf580e160778acdfd476c848f22acdeeafd8e5dac7c8f734913
MD5 7d3bb5df10c080939d248274733bb550
SHA1 34466b8add91b8d1a3a050fcce7d8d2fc784aaa6
SHA512 ec703affb679fa9d73edde83a5013a70088c4ab173f6ddc7c713f4414b4a91a1f98f3e4b270833329d50cd0ddf800142e288106e3152ea32052e57bb7bb37330
MD5 SHA1 SHA512

Score

10^/10

redline atnnn discovery evasion infostealer spyware stealer

Malware Config

Extracted

Family

redline

Botnet

ATNNN

192.227.128.150:6757

Signatures

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine payload 6 IoCs

resource	yara_rule
behavioral1/memory/972-65-0x0000000000400000-0x000000000041E000-memory.dmp	family_redline
behavioral1/memory/972-66-0x0000000000400000-0x000000000041E000-memory.dmp	family_redline
behavioral1/memory/972-67-0x0000000000400000-0x000000000041E000-memory.dmp	family_redline
behavioral1/memory/972-68-0x000000000041933E-mapping.dmp	family_redline
behavioral1/memory/972-70-0x0000000000400000-0x000000000041E000-memory.dmp	family_redline
behavioral1/memory/972-72-0x0000000000400000-0x000000000041E000-memory.dmp	family_redline

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	swift pdf.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	swift pdf.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	swift pdf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	swift pdf.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	swift pdf.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	swift pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1540 set thread context of 972	1540	swift pdf.exe	30

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 3 IoCs

pid	Process
2028	powershell.exe
972	swift pdf.exe
972	swift pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2028	powershell.exe
Token: SeDebugPrivilege	972	swift pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 2028	1540	swift pdf.exe	27
PID 1540 wrote to memory of 2028	1540	swift pdf.exe	27
PID 1540 wrote to memory of 2028	1540	swift pdf.exe	27
PID 1540 wrote to memory of 2028	1540	swift pdf.exe	27
PID 1540 wrote to memory of 972	1540	swift pdf.exe	30
PID 1540 wrote to memory of 972	1540	swift pdf.exe	30
PID 1540 wrote to memory of 972	1540	swift pdf.exe	30
PID 1540 wrote to memory of 972	1540	swift pdf.exe	30
PID 1540 wrote to memory of 972	1540	swift pdf.exe	30
PID 1540 wrote to memory of 972	1540	swift pdf.exe	30
PID 1540 wrote to memory of 972	1540	swift pdf.exe	30
PID 1540 wrote to memory of 972	1540	swift pdf.exe	30
PID 1540 wrote to memory of 972	1540	swift pdf.exe	30

C:\Users\Admin\AppData\Local\Temp\swift pdf.exe
"C:\Users\Admin\AppData\Local\Temp\swift pdf.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\swift pdf.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2028
- C:\Users\Admin\AppData\Local\Temp\swift pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\swift pdf.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:972

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/972-66-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/972-72-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/972-70-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/972-67-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/972-62-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/972-63-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/972-65-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/1540-55-0x0000000075661000-0x0000000075663000-memory.dmp

Download

memory/1540-61-0x00000000051B0000-0x00000000051CE000-memory.dmp

Download

memory/1540-58-0x0000000004DF0000-0x0000000004E46000-memory.dmp

Download

memory/1540-54-0x00000000000B0000-0x0000000000170000-memory.dmp

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memory/1540-57-0x00000000006D0000-0x00000000006DA000-memory.dmp

Download

memory/1540-56-0x0000000000600000-0x0000000000616000-memory.dmp

Download

memory/2028-73-0x000000006CB90000-0x000000006D13B000-memory.dmp

Download