troldesh | fd03dd58aa7cb5236f4df8cde3fb07af304c6f402cd48b86eefcecb8e7b86883

Resubmissions

07-05-2022 04:14

220507-ety5zaebdk 10

Analysis

max time kernel
126s
max time network
140s
platform
windows7_x64
resource
win7-20220414-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 spyware stealer 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
behavioral1/memory/1644-56-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/1644-57-0x0000000000400000-0x0000000000608000-memory.dmp	upx

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	inf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\""	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 2 IoCs

pid	Process
1644	inf.exe
1644	inf.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1644	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
- Suspicious use of UnmapMainImage
PID:1644

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

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1644-54-0x0000000076781000-0x0000000076783000-memory.dmp

Filesize
8KB

Download
memory/1644-55-0x0000000000300000-0x00000000003D5000-memory.dmp

Filesize
852KB

Download
memory/1644-56-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/1644-57-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download