troldesh | fd03dd58aa7cb5236f4df8cde3fb07af304c6f402cd48b86eefcecb8e7b86883

Resubmissions

07-05-2022 04:14

220507-ety5zaebdk 10

Analysis

max time kernel
177s
max time network
186s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
07-05-2022 04:14

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General

Target

inf.exe
Size

1.3MB
MD5

73dea1a75637e14f6fcd012fe2815636
SHA1

f1edca0d6464b76bc4956352571d8941c02d2c4e
SHA256

fd03dd58aa7cb5236f4df8cde3fb07af304c6f402cd48b86eefcecb8e7b86883
SHA512

f6dc462194037a5c4e0b186088f1fd75befe4cb88bf1dcc7477987951332fc18f8aa66389d567e01677990b022fea6849a66a24510027794e12e2a517edde8d0

Score

10^/10

troldesh discovery persistence ransomware trojan upx

Malware Config

Signatures

Troldesh, Shade, Encoder.858
Troldesh is a ransomware spread by malspam.
ransomware trojan troldesh

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4636-131-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/4636-132-0x0000000000400000-0x0000000000608000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\""	inf.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	inf.exe

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
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

pid	Process
4636	inf.exe
4636	inf.exe
4636	inf.exe
4636	inf.exe

C:\Users\Admin\AppData\Local\Temp\inf.exe
"C:\Users\Admin\AppData\Local\Temp\inf.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:4636

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4636-130-0x0000000002470000-0x0000000002545000-memory.dmp

Filesize
852KB

Download
memory/4636-131-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/4636-132-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download