redline | 4e5b72658b3ee150f255b726931d387e897d1e5db4f40fbd6a3181e1908671af

Analysis

max time kernel
151s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
22-09-2022 10:13

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General

Target

Document.pdf.scr
Size

700.0MB
MD5

42a123d2a8c6b9bf813d4ba30c6f7339
SHA1

020db224e295b652601f34b1b5284f3ad6bdf22f
SHA256

4e5b72658b3ee150f255b726931d387e897d1e5db4f40fbd6a3181e1908671af
SHA512

aec4d9c6c9255ad4764a737bb38f68e525d95d38d634e286100c896683fa1bc5f3b62cdc829b6f990fb2570455a6f1c3a7c81e117499065520c24325700cccaf
SSDEEP

98304:Xm27HCFxPcIIqb9tIKdgEezl6nW1WIxV2UBPB3VsYT:XmHbPcIIqb9u15zl6nW1WA2rYT

Score

10^/10

redline web agilenet infostealer

Malware Config

Extracted

Family

redline

Botnet

web

62.204.41.139:25190

Attributes

auth_value
2b0495835b75f494572b5792f0b7a9e1

Signatures

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

RedLine payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3068-143-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline

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

Processes:

Document.pdf.scr

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	Document.pdf.scr

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral2/memory/2084-132-0x0000000000490000-0x00000000008DC000-memory.dmp	agile_net

Suspicious use of SetThreadContext 1 IoCs

Processes:

Document.pdf.scr

description pid process target process

PID 2084 set thread context of 3068 2084 Document.pdf.scr InstallUtil.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 4 IoCs

Processes:

powershell.exeDocument.pdf.scr

pid process

4752 powershell.exe
4752 powershell.exe
2084 Document.pdf.scr
2084 Document.pdf.scr
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeDocument.pdf.scr

description pid process

Token: SeDebugPrivilege 4752 powershell.exe
Token: SeDebugPrivilege 2084 Document.pdf.scr

description	pid	process	target process
PID 2084 set thread context of 3068	2084	Document.pdf.scr	InstallUtil.exe

pid	process
4752	powershell.exe
4752	powershell.exe
2084	Document.pdf.scr
2084	Document.pdf.scr

description	pid	process
Token: SeDebugPrivilege	4752	powershell.exe
Token: SeDebugPrivilege	2084	Document.pdf.scr

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Document.pdf.scr

description	pid	process	target process
PID 2084 wrote to memory of 4752	2084	Document.pdf.scr	powershell.exe
PID 2084 wrote to memory of 4752	2084	Document.pdf.scr	powershell.exe
PID 2084 wrote to memory of 4752	2084	Document.pdf.scr	powershell.exe
PID 2084 wrote to memory of 3068	2084	Document.pdf.scr	InstallUtil.exe
PID 2084 wrote to memory of 3068	2084	Document.pdf.scr	InstallUtil.exe
PID 2084 wrote to memory of 3068	2084	Document.pdf.scr	InstallUtil.exe
PID 2084 wrote to memory of 3068	2084	Document.pdf.scr	InstallUtil.exe
PID 2084 wrote to memory of 3068	2084	Document.pdf.scr	InstallUtil.exe
PID 2084 wrote to memory of 3068	2084	Document.pdf.scr	InstallUtil.exe
PID 2084 wrote to memory of 3068	2084	Document.pdf.scr	InstallUtil.exe
PID 2084 wrote to memory of 3068	2084	Document.pdf.scr	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Document.pdf.scr
"C:\Users\Admin\AppData\Local\Temp\Document.pdf.scr" /S
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2084

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQA1AA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4752

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
PID:3068

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2084-133-0x0000000005430000-0x0000000005452000-memory.dmp

Filesize
136KB

Download
memory/2084-132-0x0000000000490000-0x00000000008DC000-memory.dmp

Filesize
4.3MB

Download
memory/3068-142-0x0000000000000000-mapping.dmp

Download
memory/3068-147-0x0000000007BE0000-0x0000000007C1C000-memory.dmp

Filesize
240KB

Download
memory/3068-146-0x0000000007B80000-0x0000000007B92000-memory.dmp

Filesize
72KB

Download
memory/3068-145-0x0000000007C70000-0x0000000007D7A000-memory.dmp

Filesize
1.0MB

Download
memory/3068-144-0x00000000062A0000-0x00000000068B8000-memory.dmp

Filesize
6.1MB

Download
memory/3068-143-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4752-136-0x0000000005190000-0x00000000057B8000-memory.dmp

Filesize
6.2MB

Download
memory/4752-140-0x00000000075A0000-0x0000000007C1A000-memory.dmp

Filesize
6.5MB

Download
memory/4752-141-0x0000000006400000-0x000000000641A000-memory.dmp

Filesize
104KB

Download
memory/4752-139-0x0000000005F20000-0x0000000005F3E000-memory.dmp

Filesize
120KB

Download
memory/4752-138-0x00000000058E0000-0x0000000005946000-memory.dmp

Filesize
408KB

Download
memory/4752-137-0x0000000005870000-0x00000000058D6000-memory.dmp

Filesize
408KB

Download
memory/4752-135-0x0000000002930000-0x0000000002966000-memory.dmp

Filesize
216KB

Download
memory/4752-134-0x0000000000000000-mapping.dmp

Download