darkcloud | 0bd93a3f99ba7af290a968f54e6aa9dd7f7d38dd59a033ae78afbee46a641e83

Analysis

max time kernel
142s
max time network
121s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
18/07/2023, 08:36

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General

Target

SOA.exe
Size

426KB
MD5

2d2d2d51c9dec0a7811ff8ffc4827689
SHA1

ebf524dbe0a9adec78fca81308574a26c7c466c6
SHA256

8a0c61f29aa2697e44a61977bc06c3cf4c2bd8228ebc0fa00ac057b7375ff2ed
SHA512

16b4ed1c5de39c8b12b54d759a4ba38cb75f5b72ae7c0508f8895ada7dc0207e2d2e27fb9bea1ed286ea8ca66e4fd49036a74db4c533187a99a67ec2e2717b9b
SSDEEP

12288:pYbyIfr4roCQxOCz0oPcujV0qtaGSTv8mY/L:pYbRf8r5zCz0oPcAO27SomYz

Score

10^/10

darkcloud persistence stealer

Malware Config

Extracted

Family

darkcloud

Attributes

email_from
[email protected]
email_to
[email protected]

Signatures

DarkCloud
An information stealer written in Visual Basic.
stealer darkcloud

Loads dropped DLL 1 IoCs

pid	Process
1132	SOA.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4219371764-2579186923-3390623117-1000\Software\Microsoft\Windows\CurrentVersion\Run\clhqm = "C:\\Users\\Admin\\AppData\\Roaming\\unjoxhdmvrbwf\\oktdyienws.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\SOA.exe\""	SOA.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1132 set thread context of 2656	1132	SOA.exe	28

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

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2656	SOA.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1132	SOA.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2656	SOA.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1132 wrote to memory of 2656	1132	SOA.exe	28
PID 1132 wrote to memory of 2656	1132	SOA.exe	28
PID 1132 wrote to memory of 2656	1132	SOA.exe	28
PID 1132 wrote to memory of 2656	1132	SOA.exe	28
PID 1132 wrote to memory of 2656	1132	SOA.exe	28

C:\Users\Admin\AppData\Local\Temp\SOA.exe
"C:\Users\Admin\AppData\Local\Temp\SOA.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Users\Admin\AppData\Local\Temp\SOA.exe
  "C:\Users\Admin\AppData\Local\Temp\SOA.exe"
  2⤵
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:2656

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

\Users\Admin\AppData\Local\Temp\nsd9BF3.tmp\rclekbmt.dll

Filesize
14KB

MD5
d039cba14a0f7cd0e74baf052c3fa236

SHA1
5b3e8d07191e642186a1543f38161efb2bd6e211

SHA256
e0900b99e6cf0907b06e9f5a88ada6301f62ede0204bedbf210f936588f19c10

SHA512
167d6b4e4e028f8c5aa7c1276f391bea691f6028e01b4c2da2532c02b3a3292c94d38d676c5cb36911c5bca70256e69e3670f0d089e4375620aba3891db03a26

Download Submit
memory/1132-60-0x0000000074CC0000-0x0000000074CC7000-memory.dmp

Filesize
28KB

Download
memory/2656-62-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-64-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-67-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-68-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-69-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-70-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-71-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-72-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-73-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-74-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-75-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-76-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-77-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-78-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-79-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-80-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2656-81-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download