darkcloud | 8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9

General

Target

8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9.exe
Size

729KB
MD5

98f37b55bc2ae96024a8cb8314d6e653
SHA1

07ba58f1f7fb475377ea30413831977187ec612e
SHA256

8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9
SHA512

f6369fb6954ddc0ccf1fad132a011a5d3bce71cc1417d8394618eabdefa0c5e5650100ab74d9c82f761d94c7bb5cdb49436a2c4d5a1e069d6061b47cf7dd5a14
SSDEEP

12288:CquErHF6xC9D6DmR1J98w4oknqOOCyQfxXPp6wRr85P3DRZmI9SrIhnqe4DXc8Xj:Hrl6kD68JmlotQf/Rr8AwKDT

Score

10^/10

darkcloud discovery stealer upx

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
Darkcloud family
darkcloud

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hurtling.vbs	hurtling.exe

Executes dropped EXE 1 IoCs

pid	Process
5280	hurtling.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/1624-17-0x0000000000E40000-0x0000000000FDA000-memory.dmp	autoit_exe
behavioral2/memory/5280-36-0x0000000000B80000-0x0000000000D1A000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5280 set thread context of 4720	5280	hurtling.exe	90

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1624-0-0x0000000000E40000-0x0000000000FDA000-memory.dmp	upx
behavioral2/files/0x000e000000023ad3-13.dat	upx
behavioral2/memory/5280-15-0x0000000000B80000-0x0000000000D1A000-memory.dmp	upx
behavioral2/memory/1624-17-0x0000000000E40000-0x0000000000FDA000-memory.dmp	upx
behavioral2/memory/5280-36-0x0000000000B80000-0x0000000000D1A000-memory.dmp	upx

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	8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurtling.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
5280	hurtling.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1624	8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9.exe
1624	8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9.exe
5280	hurtling.exe
5280	hurtling.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1624	8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9.exe
1624	8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9.exe
5280	hurtling.exe
5280	hurtling.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4720	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 5280	1624	8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9.exe	89
PID 1624 wrote to memory of 5280	1624	8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9.exe	89
PID 1624 wrote to memory of 5280	1624	8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9.exe	89
PID 5280 wrote to memory of 4720	5280	hurtling.exe	90
PID 5280 wrote to memory of 4720	5280	hurtling.exe	90
PID 5280 wrote to memory of 4720	5280	hurtling.exe	90
PID 5280 wrote to memory of 4720	5280	hurtling.exe	90

C:\Users\Admin\AppData\Local\Temp\8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9.exe
"C:\Users\Admin\AppData\Local\Temp\8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Users\Admin\AppData\Local\Countee\hurtling.exe
  "C:\Users\Admin\AppData\Local\Temp\8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:5280
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:4720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Countee\hurtling.exe

Filesize
729KB

MD5
98f37b55bc2ae96024a8cb8314d6e653

SHA1
07ba58f1f7fb475377ea30413831977187ec612e

SHA256
8fb6d066b1cfe9e7f97a62410d0c9b3e42bc8980bec7254bb470b2bc01e148d9

SHA512
f6369fb6954ddc0ccf1fad132a011a5d3bce71cc1417d8394618eabdefa0c5e5650100ab74d9c82f761d94c7bb5cdb49436a2c4d5a1e069d6061b47cf7dd5a14

Download Submit
C:\Users\Admin\AppData\Local\Temp\anaboly

Filesize
28KB

MD5
eab6fde96f9c418abef519035d2af89f

SHA1
d66d02553ba27f4afbe1a24068e4ded9f1b318b9

SHA256
fd1dcf9fbe49430a242974e7fe8016ad8fcaf7e9f15b60b629ab10722ef9fde4

SHA512
6000be1e086003a6f1d193e645b3c8edc4b84e040810129208d98a6e1935d49c3d99dad4eaee498aa11062a796ed8879da848b9db91f01b42b490adf5e4ed231

Download Submit
C:\Users\Admin\AppData\Local\Temp\hypopygidium

Filesize
444KB

MD5
91ca7aa3267f4f5b0e6cf4ccb65fa2b2

SHA1
47671fc3b186314f87ab96abc5b7626885da4c5f

SHA256
dbda3fda9e7fdf0eb2f878929f6e750814db10db0196adbda56d51b98e053cb1

SHA512
aaa0006ed9dd62e8fa061db325e3f3ddb616f544061e64998a6790c4b4f43d46af5d8fd0d671dbdef65c6eaadc603442fd147e3fd713d1f1207c6c97ada88961

Download Submit
memory/1624-0-0x0000000000E40000-0x0000000000FDA000-memory.dmp

Filesize
1.6MB

Download
memory/1624-11-0x0000000001470000-0x0000000001474000-memory.dmp

Filesize
16KB

Download
memory/1624-17-0x0000000000E40000-0x0000000000FDA000-memory.dmp

Filesize
1.6MB

Download
memory/4720-32-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/4720-35-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/4720-47-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/5280-15-0x0000000000B80000-0x0000000000D1A000-memory.dmp

Filesize
1.6MB

Download
memory/5280-36-0x0000000000B80000-0x0000000000D1A000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing