troldesh | 2aab13d49b60001de3aa47fb8f7251a973faa7f3c53a3840cdf5fd0b26e9a09f

General

Target

NoMoreRansom.exe
Size

1.4MB
MD5

63210f8f1dde6c40a7f3643ccf0ff313
SHA1

57edd72391d710d71bead504d44389d0462ccec9
SHA256

2aab13d49b60001de3aa47fb8f7251a973faa7f3c53a3840cdf5fd0b26e9a09f
SHA512

87a89e8ab85be150a783a9f8d41797cfa12f86fdccb48f2180c0498bfd2b1040b730dee4665fe2c83b98d436453680226051b7f1532e1c0e0cda0cf702e80a11
SSDEEP

12288:WZgSKWk54jeg6lL5assQHtzV2KoLJ+PwXxwuLSJ8slf1zMr6iL/KNDx2PIXe2Q:KgoLetlLS8tz6V+PwD0XVMrXCNDxtK

Score

10^/10

troldesh discovery persistence ransomware trojan upx

Malware Config

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
4344	csrss.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2081498128-3109241912-2948996266-1000\Software\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\""	NoMoreRansom.exe

UPX packed file 16 IoCs

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

upx

resource	yara_rule
behavioral1/memory/4380-1-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4380-2-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4380-3-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4380-6-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4380-4-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4344-13-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4344-15-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4344-16-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4380-19-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4380-20-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4380-21-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4380-22-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4380-23-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4380-24-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4380-25-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral1/memory/4380-28-0x0000000000400000-0x00000000005DE000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NoMoreRansom.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4380	NoMoreRansom.exe
4380	NoMoreRansom.exe
4380	NoMoreRansom.exe
4380	NoMoreRansom.exe
4344	csrss.exe
4344	csrss.exe
4344	csrss.exe
4344	csrss.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3136 wrote to memory of 4344	3136	cmd.exe	84
PID 3136 wrote to memory of 4344	3136	cmd.exe	84
PID 3136 wrote to memory of 4344	3136	cmd.exe	84

C:\Users\Admin\AppData\Local\Temp\NoMoreRansom.exe
"C:\Users\Admin\AppData\Local\Temp\NoMoreRansom.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4380

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\ProgramData\Windows\csrss.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3136
- C:\ProgramData\Windows\csrss.exe
  C:\ProgramData\Windows\csrss.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Windows\csrss.exe

Filesize
1.4MB

MD5
63210f8f1dde6c40a7f3643ccf0ff313

SHA1
57edd72391d710d71bead504d44389d0462ccec9

SHA256
2aab13d49b60001de3aa47fb8f7251a973faa7f3c53a3840cdf5fd0b26e9a09f

SHA512
87a89e8ab85be150a783a9f8d41797cfa12f86fdccb48f2180c0498bfd2b1040b730dee4665fe2c83b98d436453680226051b7f1532e1c0e0cda0cf702e80a11

Download Submit
memory/4344-16-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4344-15-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4344-12-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4344-13-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4380-6-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4380-20-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4380-0-0x0000000002450000-0x000000000251E000-memory.dmp

Filesize
824KB

Download
memory/4380-3-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4380-2-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4380-1-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4380-19-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4380-4-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4380-21-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4380-22-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4380-23-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4380-24-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4380-25-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4380-28-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads