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
4644	._cache_CorFile2.exe
580	Synaptics.exe
1628	._cache_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 4 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	CorFile2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_CorFile2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_Synaptics.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	CorFile2.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3924	EXCEL.EXE

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
3924	EXCEL.EXE
3924	EXCEL.EXE
3924	EXCEL.EXE
3924	EXCEL.EXE
3924	EXCEL.EXE
3924	EXCEL.EXE
3924	EXCEL.EXE
3924	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 4644	2936	CorFile2.exe	77
PID 2936 wrote to memory of 4644	2936	CorFile2.exe	77
PID 2936 wrote to memory of 4644	2936	CorFile2.exe	77
PID 2936 wrote to memory of 580	2936	CorFile2.exe	78
PID 2936 wrote to memory of 580	2936	CorFile2.exe	78
PID 2936 wrote to memory of 580	2936	CorFile2.exe	78
PID 580 wrote to memory of 1628	580	Synaptics.exe	79
PID 580 wrote to memory of 1628	580	Synaptics.exe	79
PID 580 wrote to memory of 1628	580	Synaptics.exe	79

C:\Users\Admin\AppData\Local\Temp\CorFile2.exe
"C:\Users\Admin\AppData\Local\Temp\CorFile2.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Users\Admin\AppData\Local\Temp\._cache_CorFile2.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_CorFile2.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4644
- C:\ProgramData\Synaptics\Synaptics.exe
  "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:580
- - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1628

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3924

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

Query Registry

2

T1012

System Information Discovery

3

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
C:\Users\Admin\AppData\Local\Temp\._cache_CorFile2.exe

Filesize
4.8MB

MD5
f22c47f8227ad36a3d0026dae2307388

SHA1
9c4fb6779174b5725e9d2078f4fdc4cf90522b20

SHA256
0ea4fb4b62a5826b1640e2a7018aa0c01119381d4320b46c9870e19cdfb557f9

SHA512
9d2276b56e4b6779643eae15922a3c489bc23bbbc15b9ef1132305f5964e1aa635ae4e82463bd79c6d6fb49e1f9dadb63bcb19d97480a1776bf96b83fb2706b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\8BA75E00

Filesize
24KB

MD5
98251c9277e756d8e17f88b131b7fe99

SHA1
c954bc0fa349b0fcc598a4aae3382b3ddf0efdb7

SHA256
e07874896b3c94b751520dcbc86f9fc2e26bc9c166b773ee02c1601968e76ae3

SHA512
716e94a4f7730b4db49bb5dc177b19278365a6e5703b690cec6d7268b2b0e6a56949b965f1ccb249529fbd904ad7f5449dbf72e913519749a353b51eb8423bdc

Download Submit
C:\Users\Admin\AppData\Local\Temp\ZhXOzrow.xlsm

Filesize
17KB

MD5
e566fc53051035e1e6fd0ed1823de0f9

SHA1
00bc96c48b98676ecd67e81a6f1d7754e4156044

SHA256
8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

SHA512
a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

Download Submit
memory/580-129-0x0000000002680000-0x0000000002681000-memory.dmp

Filesize
4KB

Download
memory/580-241-0x0000000002680000-0x0000000002681000-memory.dmp

Filesize
4KB

Download
memory/580-240-0x0000000000400000-0x000000000098A000-memory.dmp

Filesize
5.5MB

Download
memory/580-272-0x0000000000400000-0x000000000098A000-memory.dmp

Filesize
5.5MB

Download
memory/2936-0-0x0000000002820000-0x0000000002821000-memory.dmp

Filesize
4KB

Download
memory/2936-128-0x0000000000400000-0x000000000098A000-memory.dmp

Filesize
5.5MB

Download
memory/3924-190-0x00007FFA87690000-0x00007FFA876A0000-memory.dmp

Filesize
64KB

Download
memory/3924-191-0x00007FFA87690000-0x00007FFA876A0000-memory.dmp

Filesize
64KB

Download
memory/3924-192-0x00007FFA87690000-0x00007FFA876A0000-memory.dmp

Filesize
64KB

Download
memory/3924-193-0x00007FFA87690000-0x00007FFA876A0000-memory.dmp

Filesize
64KB

Download
memory/3924-194-0x00007FFA87690000-0x00007FFA876A0000-memory.dmp

Filesize
64KB

Download
memory/3924-195-0x00007FFA85160000-0x00007FFA85170000-memory.dmp

Filesize
64KB

Download
memory/3924-196-0x00007FFA85160000-0x00007FFA85170000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads