xred | 56751e9b9254ff63d09164c380208913237270b2ce939cf5edcf271874122c75

General

Target

CorFile2.exe
Size

5.5MB
MD5

3a21107631e0d658dc2d1410e20ca9e2
SHA1

3ead0bcb35e7f3ece32f3499e7df56e187d0aefa
SHA256

56751e9b9254ff63d09164c380208913237270b2ce939cf5edcf271874122c75
SHA512

2b29cdbcb3d52f392ab94b207932c4bc643c30199f3671865fad98e76d6103224f80684445759bd4f86e2d401adab19196c73bd5b416150719eac9762c55a1fe
SSDEEP

12288:PMSApJVYG5lDLyjsb0eOzkv4R7QnvUUilQ35+6G75V9XKWkj:PnsJ39LyjbJkQFMhmC+6GD96WU

Score

10^/10

xred backdoor discovery persistence

Malware Config

Extracted

Family

xred

C2

xred.mooo.com

Attributes

email
[email protected]
payload_url
http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

http://xred.site50.net/syn/SUpdate.ini

https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

http://xred.site50.net/syn/Synaptics.rar

https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

http://xred.site50.net/syn/SSLLibrary.dll

Signatures

Xred
Xred is backdoor written in Delphi.
backdoor xred
Xred family
xred

Executes dropped EXE 3 IoCs

pid	Process
2604	._cache_CorFile2.exe
2632	Synaptics.exe
2636	._cache_Synaptics.exe

Loads dropped DLL 7 IoCs

pid	Process
1716	CorFile2.exe
1716	CorFile2.exe
1716	CorFile2.exe
1716	CorFile2.exe
2632	Synaptics.exe
2632	Synaptics.exe
2632	Synaptics.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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	CorFile2.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 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	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CorFile2.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 2604	1716	CorFile2.exe	28
PID 1716 wrote to memory of 2604	1716	CorFile2.exe	28
PID 1716 wrote to memory of 2604	1716	CorFile2.exe	28
PID 1716 wrote to memory of 2604	1716	CorFile2.exe	28
PID 1716 wrote to memory of 2632	1716	CorFile2.exe	29
PID 1716 wrote to memory of 2632	1716	CorFile2.exe	29
PID 1716 wrote to memory of 2632	1716	CorFile2.exe	29
PID 1716 wrote to memory of 2632	1716	CorFile2.exe	29
PID 2632 wrote to memory of 2636	2632	Synaptics.exe	30
PID 2632 wrote to memory of 2636	2632	Synaptics.exe	30
PID 2632 wrote to memory of 2636	2632	Synaptics.exe	30
PID 2632 wrote to memory of 2636	2632	Synaptics.exe	30

C:\Users\Admin\AppData\Local\Temp\CorFile2.exe
"C:\Users\Admin\AppData\Local\Temp\CorFile2.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Users\Admin\AppData\Local\Temp\._cache_CorFile2.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_CorFile2.exe"
  2⤵
  - Executes dropped EXE
  PID:2604
- C:\ProgramData\Synaptics\Synaptics.exe
  "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2632
- - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
    3⤵
    - Executes dropped EXE
    PID:2636

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\Synaptics\Synaptics.exe

Filesize
5.5MB

MD5
3a21107631e0d658dc2d1410e20ca9e2

SHA1
3ead0bcb35e7f3ece32f3499e7df56e187d0aefa

SHA256
56751e9b9254ff63d09164c380208913237270b2ce939cf5edcf271874122c75

SHA512
2b29cdbcb3d52f392ab94b207932c4bc643c30199f3671865fad98e76d6103224f80684445759bd4f86e2d401adab19196c73bd5b416150719eac9762c55a1fe

Download Submit
\Users\Admin\AppData\Local\Temp\._cache_CorFile2.exe

Filesize
4.8MB

MD5
f22c47f8227ad36a3d0026dae2307388

SHA1
9c4fb6779174b5725e9d2078f4fdc4cf90522b20

SHA256
0ea4fb4b62a5826b1640e2a7018aa0c01119381d4320b46c9870e19cdfb557f9

SHA512
9d2276b56e4b6779643eae15922a3c489bc23bbbc15b9ef1132305f5964e1aa635ae4e82463bd79c6d6fb49e1f9dadb63bcb19d97480a1776bf96b83fb2706b6

Download Submit
memory/1716-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1716-28-0x0000000000400000-0x000000000098A000-memory.dmp

Filesize
5.5MB

Download
memory/2632-41-0x0000000000400000-0x000000000098A000-memory.dmp

Filesize
5.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads