troldesh | 77326b81d37717b387d14b87c02dfedf6e6903c43c1e1b2061f7723e01a9452f

Analysis

max time kernel
64s
max time network
79s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
29-01-2023 18:18

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General

Target

77326b81d37717b387d14b87c02dfedf6e6903c43c1e1b2061f7723e01a9452f.exe
Size

1.4MB
MD5

f8c9f38512e2f68a81ea4ae88828e70f
SHA1

7ca68cbd2eaf56f52cb293e49502b33d84651aeb
SHA256

77326b81d37717b387d14b87c02dfedf6e6903c43c1e1b2061f7723e01a9452f
SHA512

c85d3bd2295e7175937cdf8003af01b87e92987747779ecd287d7e32519e96397ed90e95593ea037870bd308506fce6e0fb3ee1ffcd251965caf8d7d97e7b6c7
SSDEEP

24576:w3IpPeRM4fkcxdvdnjqtei/y1RNSA4QGF4ivjik:dP6fkUdFnjqkj1vSA5Lid

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 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1972-55-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/1972-57-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/1972-58-0x0000000000400000-0x0000000000608000-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-1-5-21-4063495947-34355257-727531523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	77326b81d37717b387d14b87c02dfedf6e6903c43c1e1b2061f7723e01a9452f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\""	77326b81d37717b387d14b87c02dfedf6e6903c43c1e1b2061f7723e01a9452f.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
1972	77326b81d37717b387d14b87c02dfedf6e6903c43c1e1b2061f7723e01a9452f.exe
1972	77326b81d37717b387d14b87c02dfedf6e6903c43c1e1b2061f7723e01a9452f.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1972	77326b81d37717b387d14b87c02dfedf6e6903c43c1e1b2061f7723e01a9452f.exe

C:\Users\Admin\AppData\Local\Temp\77326b81d37717b387d14b87c02dfedf6e6903c43c1e1b2061f7723e01a9452f.exe
"C:\Users\Admin\AppData\Local\Temp\77326b81d37717b387d14b87c02dfedf6e6903c43c1e1b2061f7723e01a9452f.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:1972

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/1972-54-0x0000000075D71000-0x0000000075D73000-memory.dmp

Filesize
8KB

Download
memory/1972-55-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/1972-56-0x0000000001EC0000-0x0000000001F95000-memory.dmp

Filesize
852KB

Download
memory/1972-57-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/1972-58-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download