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 macro 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

Suspicious Office macro 1 IoCs

Office document equipped with macros.

macro

resource
behavioral1/files/0x0008000000017546-77.dat

Executes dropped EXE 3 IoCs

pid	Process
2008	._cache_CorFile2.exe
848	Synaptics.exe
1904	._cache_Synaptics.exe

Loads dropped DLL 7 IoCs

pid	Process
2348	CorFile2.exe
2348	CorFile2.exe
2348	CorFile2.exe
2348	CorFile2.exe
848	Synaptics.exe
848	Synaptics.exe
848	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 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	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CorFile2.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2716	EXCEL.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2716	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2008	2348	CorFile2.exe	30
PID 2348 wrote to memory of 2008	2348	CorFile2.exe	30
PID 2348 wrote to memory of 2008	2348	CorFile2.exe	30
PID 2348 wrote to memory of 2008	2348	CorFile2.exe	30
PID 2348 wrote to memory of 848	2348	CorFile2.exe	31
PID 2348 wrote to memory of 848	2348	CorFile2.exe	31
PID 2348 wrote to memory of 848	2348	CorFile2.exe	31
PID 2348 wrote to memory of 848	2348	CorFile2.exe	31
PID 848 wrote to memory of 1904	848	Synaptics.exe	32
PID 848 wrote to memory of 1904	848	Synaptics.exe	32
PID 848 wrote to memory of 1904	848	Synaptics.exe	32
PID 848 wrote to memory of 1904	848	Synaptics.exe	32

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:2348
- C:\Users\Admin\AppData\Local\Temp\._cache_CorFile2.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_CorFile2.exe"
  2⤵
  - Executes dropped EXE
  PID:2008
- 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:848
- - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
    3⤵
    - Executes dropped EXE
    PID:1904

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /automation -Embedding
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2716

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

1

T1012

System Information Discovery

2

T1082

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:\ProgramData\Synaptics\Synaptics.exe

Filesize
5.5MB

MD5
3a21107631e0d658dc2d1410e20ca9e2

SHA1
3ead0bcb35e7f3ece32f3499e7df56e187d0aefa

SHA256
56751e9b9254ff63d09164c380208913237270b2ce939cf5edcf271874122c75

SHA512
2b29cdbcb3d52f392ab94b207932c4bc643c30199f3671865fad98e76d6103224f80684445759bd4f86e2d401adab19196c73bd5b416150719eac9762c55a1fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\eCR6iBQ4.xlsm

Filesize
17KB

MD5
e566fc53051035e1e6fd0ed1823de0f9

SHA1
00bc96c48b98676ecd67e81a6f1d7754e4156044

SHA256
8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

SHA512
a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

Download Submit
C:\Users\Admin\AppData\Local\Temp\eCR6iBQ4.xlsm

Filesize
24KB

MD5
2fe87ee193eff7601c612871f80ca91a

SHA1
e04c12c21cd9770ce2692a95890a6e01e3debc4e

SHA256
58f0636dcf97708cdbe58bbcdff1f8d33e75fd825819983b5b9dd9d3a201f68e

SHA512
ce31593cf7cebd730798593facee7b063669d40c372826ea2a21a5cf66f3933c53e970b03380f2d2c39b0f3089ee7a99fbdb5aca035c3bb19151d30569df35ad

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

Filesize
4.8MB

MD5
f22c47f8227ad36a3d0026dae2307388

SHA1
9c4fb6779174b5725e9d2078f4fdc4cf90522b20

SHA256
0ea4fb4b62a5826b1640e2a7018aa0c01119381d4320b46c9870e19cdfb557f9

SHA512
9d2276b56e4b6779643eae15922a3c489bc23bbbc15b9ef1132305f5964e1aa635ae4e82463bd79c6d6fb49e1f9dadb63bcb19d97480a1776bf96b83fb2706b6

Download Submit
memory/848-41-0x0000000000400000-0x000000000098A000-memory.dmp

Filesize
5.5MB

Download
memory/848-85-0x0000000000400000-0x000000000098A000-memory.dmp

Filesize
5.5MB

Download
memory/848-86-0x0000000000400000-0x000000000098A000-memory.dmp

Filesize
5.5MB

Download
memory/848-118-0x0000000000400000-0x000000000098A000-memory.dmp

Filesize
5.5MB

Download
memory/2348-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2348-28-0x0000000000400000-0x000000000098A000-memory.dmp

Filesize
5.5MB

Download
memory/2716-42-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads