troldesh | 556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
25-07-2022 16:11

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General

Target

556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe
Size

940KB
MD5

c729b5dd77e6dafba527e578aa1c222d
SHA1

f3b589aa4553aefa0138bd793d2cb5a0f0bf967d
SHA256

556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0
SHA512

5b7e318ea2203e56ff5b4d4ab9023813be76602a6d739563b5b6cab7ff487145c8bc075799b34971471891651debbcb00f8bf3ef2a67b841ee586b01b9f7c382

Score

10^/10

troldesh persistence ransomware 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
behavioral2/memory/4376-132-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral2/memory/4376-133-0x0000000000400000-0x00000000005DE000-memory.dmp	upx
behavioral2/memory/4376-134-0x0000000000400000-0x00000000005DE000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
2012	556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe

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-1-5-21-2660308776-3705150086-26593515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\""	556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe
Key created	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2012 set thread context of 4376	2012	556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe	82

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
4376	556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe
4376	556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe
4376	556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe
4376	556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2012	556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 4376	2012	556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe	82
PID 2012 wrote to memory of 4376	2012	556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe	82
PID 2012 wrote to memory of 4376	2012	556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe	82
PID 2012 wrote to memory of 4376	2012	556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe	82

C:\Users\Admin\AppData\Local\Temp\556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe
"C:\Users\Admin\AppData\Local\Temp\556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Users\Admin\AppData\Local\Temp\556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe
  "C:\Users\Admin\AppData\Local\Temp\556385396b3383b85bc2e2e9fdf1c3bc8801d4665aae745b0120a4ac4d95aaa0.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  PID:4376

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsiB666.tmp\System.dll

Filesize
11KB

MD5
55a26d7800446f1373056064c64c3ce8

SHA1
80256857e9a0a9c8897923b717f3435295a76002

SHA256
904fd5481d72f4e03b01a455f848dedd095d0fb17e33608e0d849f5196fb6ff8

SHA512
04b8ab7a85c26f188c0a06f524488d6f2ac2884bf107c860c82e94ae12c3859f825133d78338fd2b594dfc48f7dc9888ae76fee786c6252a5c77c88755128a5b

Download Submit
memory/4376-132-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4376-133-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download
memory/4376-134-0x0000000000400000-0x00000000005DE000-memory.dmp

Filesize
1.9MB

Download