darkcloud | 08982a9c5b9af184e12326962735bb97c6dcfaede7c60af658b4ae9138401826

General

Target

New order PO 023-1108.exe
Size

1.1MB
MD5

dbbadc388c09e0a3a92e3518e2521ac0
SHA1

97c9720f2f5ea0b320c22ad9ad7755b6c62d6f5b
SHA256

145a8ffbcd4da229715fcdce83ce6718f51e68aead22022f52e142795b34a52c
SHA512

6a57c734ac6f4f2def449945ab68109f01378add63f000d552329959f83a2ab85901ef3aae92f61a1fb0de64ed4e2cceeb353fa7ed6a42e53c00c76cdcfeaadf
SSDEEP

24576:YP2+AZd5sn8h1eSeT6UnnP4Eehhr8ga1cX3UCfdj56khw9PpO9TfrzLW2JcM7n:C2+MUueT74J/rxHU089Pp4vW2Jckn

Score

10^/10

darkcloud guloader discovery downloader spyware stealer

Malware Config

Signatures

DarkCloud
An information stealer written in Visual Basic.
stealer darkcloud
Darkcloud family
darkcloud
Guloader family
guloader
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Loads dropped DLL 1 IoCs

pid	Process
5596	New order PO 023-1108.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
19	drive.google.com
20	drive.google.com

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\vildttllinger.ini	New order PO 023-1108.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
3504	New order PO 023-1108.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
5596	New order PO 023-1108.exe
3504	New order PO 023-1108.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\repunctuated\Gruppetilhrsforholdene.ini	New order PO 023-1108.exe
File opened for modification	C:\Program Files (x86)\Common Files\Nonprofession\omdefinerer.bin	New order PO 023-1108.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Fonts\trstespiserne\feodum.lnk	New order PO 023-1108.exe

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 3 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	New order PO 023-1108.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	New order PO 023-1108.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
4296	taskkill.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
5596	New order PO 023-1108.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4296	taskkill.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3504	New order PO 023-1108.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3504	New order PO 023-1108.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 5596 wrote to memory of 3504	5596	New order PO 023-1108.exe	96
PID 5596 wrote to memory of 3504	5596	New order PO 023-1108.exe	96
PID 5596 wrote to memory of 3504	5596	New order PO 023-1108.exe	96
PID 5596 wrote to memory of 3504	5596	New order PO 023-1108.exe	96
PID 3504 wrote to memory of 4296	3504	New order PO 023-1108.exe	99
PID 3504 wrote to memory of 4296	3504	New order PO 023-1108.exe	99
PID 3504 wrote to memory of 4296	3504	New order PO 023-1108.exe	99

C:\Users\Admin\AppData\Local\Temp\New order PO 023-1108.exe
"C:\Users\Admin\AppData\Local\Temp\New order PO 023-1108.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:5596
- C:\Users\Admin\AppData\Local\Temp\New order PO 023-1108.exe
  "C:\Users\Admin\AppData\Local\Temp\New order PO 023-1108.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3504
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /im chrome.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4296

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

1

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsz7928.tmp\System.dll

Filesize
11KB

MD5
960a5c48e25cf2bca332e74e11d825c9

SHA1
da35c6816ace5daf4c6c1d57b93b09a82ecdc876

SHA256
484f8e9f194ed9016274ef3672b2c52ed5f574fb71d3884edf3c222b758a75a2

SHA512
cc450179e2d0d56aee2ccf8163d3882978c4e9c1aa3d3a95875fe9ba9831e07ddfd377111dc67f801fa53b6f468a418f086f1de7c71e0a5b634e1ae2a67cd3da

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\LYFGOYQN-Admin.zip

Filesize
623B

MD5
c61b834c4f4503bd8cbb5ec114ac8582

SHA1
c76e92a966e2ac467ca33291b553429ac03ef0ae

SHA256
13c09a787b9a2ab138a9b7762c66859ea4230c1af7b6e1f55f8587d83e682f81

SHA512
81081703bcce85c7958d2380b3034ad5e11fdbd6ad0824c231f6c5bf6a9c95653b629f3a224401ea8d8ca32d04fb935c4dafca5223c3a79f629eed24ca232ec0

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\LYFGOYQN-Admin.zip

Filesize
24B

MD5
98a833e15d18697e8e56cdafb0642647

SHA1
e5f94d969899646a3d4635f28a7cd9dd69705887

SHA256
ff006c86b5ec033fe3cafd759bf75be00e50c375c75157e99c0c5d39c96a2a6c

SHA512
c6f9a09d9707b770dbc10d47c4d9b949f4ebf5f030b5ef8c511b635c32d418ad25d72eee5d7ed02a96aeb8bf2c85491ca1aa0e4336d242793c886ed1bcdd910b

Download Submit
C:\Windows\SysWOW64\vildttllinger.ini

Filesize
36B

MD5
dbb3cc6cadd24636b4360ed61f0edbd2

SHA1
b8fbdfe19241066a41cf6c5444ad5a47e4c20490

SHA256
c8f7aaf341963727e04401a1122952d42414b91408b1a32f404647a72a1366e3

SHA512
2e1c1ba836f9ca9b69e33073e88efd0ea58e0071f718542fbeead50167df191398e0a67c06d93fbdbafa2a67bfb587edf252c1928dbbd8e06f9df8a178239596

Download Submit
memory/3504-355-0x00000000770E8000-0x00000000770E9000-memory.dmp

Filesize
4KB

Download
memory/3504-420-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/3504-353-0x0000000001660000-0x0000000004EC2000-memory.dmp

Filesize
56.4MB

Download
memory/3504-356-0x0000000077105000-0x0000000077106000-memory.dmp

Filesize
4KB

Download
memory/3504-366-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/3504-367-0x0000000001660000-0x0000000004EC2000-memory.dmp

Filesize
56.4MB

Download
memory/3504-371-0x0000000077061000-0x0000000077181000-memory.dmp

Filesize
1.1MB

Download
memory/3504-370-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/3504-429-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/3504-428-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/3504-406-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/3504-354-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/3504-421-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/3504-422-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/3504-423-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/3504-424-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/3504-425-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/3504-426-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/3504-427-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/5596-351-0x0000000077061000-0x0000000077181000-memory.dmp

Filesize
1.1MB

Download
memory/5596-352-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

Download

Analysis

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