troldesh | b1f13a9ef3da3c9bd2cfd0fcfd7368b48346a6995a91dd0edca12557773a7763

Analysis

max time kernel
142s
max time network
145s
platform
windows10_x64
resource
win10v20210410
submitted
15-05-2021 14:29

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General

Target

b1f13a9ef3da3c9bd2cfd0fcfd7368b48346a6995a91dd0edca12557773a7763.exe
Size

1.5MB
MD5

6f4a3bce5a21f15c57b1fb175048a374
SHA1

0c6fbba46356f5ed4a11b593fafd6cb89ee95038
SHA256

b1f13a9ef3da3c9bd2cfd0fcfd7368b48346a6995a91dd0edca12557773a7763
SHA512

4dc04f30ee1a2631a34012aa374367fef8c4f20315169c8cb8cac08cc52cfc186b4346dbba827417d16ea38f860648eade75d035e3631f0f16ba6c3b7e31d719

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 1 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3896-115-0x0000000000400000-0x0000000000608000-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

Processes:

b1f13a9ef3da3c9bd2cfd0fcfd7368b48346a6995a91dd0edca12557773a7763.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	b1f13a9ef3da3c9bd2cfd0fcfd7368b48346a6995a91dd0edca12557773a7763.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\""	b1f13a9ef3da3c9bd2cfd0fcfd7368b48346a6995a91dd0edca12557773a7763.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

Processes:

b1f13a9ef3da3c9bd2cfd0fcfd7368b48346a6995a91dd0edca12557773a7763.exe

pid	process
3896	b1f13a9ef3da3c9bd2cfd0fcfd7368b48346a6995a91dd0edca12557773a7763.exe
3896	b1f13a9ef3da3c9bd2cfd0fcfd7368b48346a6995a91dd0edca12557773a7763.exe
3896	b1f13a9ef3da3c9bd2cfd0fcfd7368b48346a6995a91dd0edca12557773a7763.exe
3896	b1f13a9ef3da3c9bd2cfd0fcfd7368b48346a6995a91dd0edca12557773a7763.exe

C:\Users\Admin\AppData\Local\Temp\b1f13a9ef3da3c9bd2cfd0fcfd7368b48346a6995a91dd0edca12557773a7763.exe
"C:\Users\Admin\AppData\Local\Temp\b1f13a9ef3da3c9bd2cfd0fcfd7368b48346a6995a91dd0edca12557773a7763.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:3896

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3896-114-0x0000000002380000-0x0000000002455000-memory.dmp

Filesize
852KB

Download
memory/3896-115-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download