MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7dec684e4f8201ed9aa44dca7eed761a0e2c62f0df0d6a6d3bf70d2993bcaa31. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


GuLoader


Vendor detections: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7dec684e4f8201ed9aa44dca7eed761a0e2c62f0df0d6a6d3bf70d2993bcaa31
SHA3-384 hash: 5c1c6cdb016336ac98c1d0b1f7bd8226cc54e67eaee9685c66c0853c9a0b2df69a63b1e850bd71dfec203a68bf434bdf
SHA1 hash: 491f103af57cb5c365624231c6f4b4eefed43897
MD5 hash: aa36a03ebaad8cfa9fdc16312951ebba
humanhash: music-fish-ink-helium
File name:7dec684e4f8201ed9aa44dca7eed761a0e2c62f0df0d6a6d3bf70d2993bcaa31
Download: download sample
Signature GuLoader
Create hunting rule
File size:923'415 bytes
First seen:2023-05-09 12:26:56 UTC
Last seen:2023-05-13 22:45:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f10e4da994053bf80c20cee985b32e29 (65 x GuLoader, 9 x RemcosRAT, 6 x QuasarRAT)
ssdeep 24576:us5A1RMX/MedFbsPfMg1MppWv5oQqGQIg:d+MX7bitM9z
Threatray 625 similar samples on MalwareBazaar
TLSH T19F15E0625E2CE871C50C84B2AE1388CBA970FE1C32D52D93755FBA3F4178256AA3DD1D
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 71f8f8f8e0e0e0e8 (2 x AZORult, 1 x Loki, 1 x Formbook)
Reporter adrian__luca
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
2
# of downloads :
265
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO_ Order List.eml
Verdict:
Malicious activity
Analysis date:
2023-04-28 05:50:49 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d24c61ac-f1eb-45c6-b0f8-2a7f769eeef4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/387828/
Detection(s):
SecuriteInfo.com.Trojan.Generic.33616719.283.13936.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file
Creating a file in the %AppData% directory
Delayed reading of the file
Sending a custom TCP request
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/83198/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
buer guloader overlay packed shell32.dll trickbot
Link:
https://www.filescan.io/uploads/645a3c16d054a0b0ef844232/reports/5d3a555e-7ffc-4433-a590-33c294f923b5/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/7dec684e4f8201ed9aa44dca7eed761a0e2c62f0df0d6a6d3bf70d2993bcaa31
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/70b2a849-00f2-4b7a-b779-a62841cc04aa
Result
Threat name:
GuLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1229167
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Remcos
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected GuLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7dec684e4f8201ed9aa44dca7eed761a0e2c62f0df0d6a6d3bf70d2993bcaa31/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Suspicious
First seen:
2023-04-27 05:15:27 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
18 of 37 (48.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pxwgqtspqia63gvejxfh53lwdihcyyxq34gwu3j364gste54viyq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
cloudeye
Create hunting rule
Similar samples:
02dc4c2aca6b32a790ff9fddb92b22ed74bab685160bd6374931a2e9edd63f0a
GuLoader
198c4b09ed4b8a46cfca9fd672797c0bb6f6d9a84016fd4f699ec65be9b9de3d
GuLoader
1a0b3222046f0838c8a536e376b898b6c97cdb821aaebae4f9ed0dc9eeb23b7c
GuLoader
229803d2640463de8048f78dab377fe80cffd8f46b075eacb276358b1a78cd15
GuLoader
25f9cee4db59dd499e9c4088926393e28f8bf51cbba8451c71d95af069189385
GuLoader
3e95a3d6fa66dde612e6c43e15acd6e7b825ddb520ea562ad8f256190f2d21b8
GuLoader
be95c7a6e7d0d95cafd06db1550a4b777737f0575cc8b8fed9cba480e663d06e
GuLoader
cae72040b23f41152097cdd9ca3500fb0b82f6c64479d125472edd7b2d0f37c6
GuLoader
d878b96dad5b242df04a937598ce6a20027ff414f2498e7c606116843d1c74f0
GuLoader
ecfd8eaed01a5714355b6b8a09f47e35c1a81691ecd1d9f3e757010ed09d2d12
GuLoader
+ 615 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:remcos botnet:remotehost downloader rat
Link:
https://tria.ge/reports/230509-pmq6wshf9z/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
Remcos
Malware Config
C2 Extraction:
51.161.212.232:2406
Unpacked files
SH256 hash:
7342b73593b3aa1b15e3731bfb1afd1961802a5c66343bac9a2c737ee94f4e38
MD5 hash:
e23600029d1b09bdb1d422fb4e46f5a6
SHA1 hash:
5d64a2f6a257a98a689a3db9a087a0fd5f180096
Link:
https://www.unpac.me/results/1e2b7b60-dd1a-4efa-a17c-2bec6ad7f413/
SH256 hash:
7dec684e4f8201ed9aa44dca7eed761a0e2c62f0df0d6a6d3bf70d2993bcaa31
MD5 hash:
aa36a03ebaad8cfa9fdc16312951ebba
SHA1 hash:
491f103af57cb5c365624231c6f4b4eefed43897
Link:
https://www.unpac.me/results/1e2b7b60-dd1a-4efa-a17c-2bec6ad7f413/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7dec684e4f82/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
GuLoader
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/7dec684e4f8201ed9aa44dca7eed761a0e2c62f0df0d6a6d3bf70d2993bcaa31

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/387828/

Comments