MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 02f309fb8e7481c72fd89103c8895d1da42b049754f97216499418f702272752. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 02f309fb8e7481c72fd89103c8895d1da42b049754f97216499418f702272752
SHA3-384 hash: f792bc3433fddbdb5358082b50ee41160b0679e4f4bb5f877f1be54dd6565862bf4dbc2453ccf59898d72537195af497
SHA1 hash: 5b6d4cae226a440ee81321ebee4e7f3d13922349
MD5 hash: c5e141426029eb886b316a1912348a2a
humanhash: salami-indigo-stream-illinois
File name:Halkbank_Ekstre_20191415_081738_949589.pdf.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:393'000 bytes
First seen:2023-01-12 15:38:18 UTC
Last seen:2023-01-12 17:36:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1f23f452093b5c1ff091a2f9fb4fa3e9 (274 x GuLoader, 36 x RemcosRAT, 23 x AgentTesla)
ssdeep 6144:zIw3Cwh2f6S/hPJ1bDPz0JGyC2CK26evmtiqOVN/UWg7g1npM6Zehg:xy52Buv8S/5gsH
TLSH T19D848EE1F294C8DBE46D45B35C2EB11025929A6990B0D21F66B7BB1A64F3353209FF0F
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 30f0dcf4d4ccf030 (5 x GuLoader)
Reporter abuse_ch
Tags:exe geo GuLoader Halkbank TUR

Intelligence

File Origin
# of uploads :
2
# of downloads :
170
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Halkbank_Ekstre_20191415_081738_949589.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-01-12 15:38:40 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1af9c6ed-3158-47a8-a5a5-9e89acba2c08

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/352329/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.64935577.18328.31441.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file
Delayed reading of the file
Searching for the Windows task manager window
Running batch commands
Creating a process with a hidden window
Sending a custom TCP request
Verdict:
No Threat
Threat level:
  2/10
Confidence:
75%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63c02998aa212e9739a22444/reports/83595c2b-47ec-4347-a406-3fc10f9f9f3d/overview
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/377b620d-07b1-41dd-ade4-6624d9c2cc24
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.phis.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1150589
Signature
Antivirus detection for URL or domain
Initial sample is a PE file and has a suspicious name
Mass process execution to delay analysis
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Obfuscated command line found
Self deletion via cmd or bat file
Snort IDS alert for network traffic
Tries to detect Any.run
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 783321 Sample: Halkbank_Ekstre_20191415_08... Startdate: 12/01/2023 Architecture: WINDOWS Score: 100 56 ozla1a.shop 2->56 58 publichouse.ventures 2->58 64 Snort IDS alert for network traffic 2->64 66 Multi AV Scanner detection for domain / URL 2->66 68 Antivirus detection for URL or domain 2->68 70 4 other signatures 2->70 9 Halkbank_Ekstre_20191415_081738_949589.pdf.exe 4 35 2->9         started        signatures3 process4 file5 42 C:\Users\user\Churnable\...\libbz2-1.dll, PE32+ 9->42 dropped 44 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 9->44 dropped 46 C:\Users\user\AppData\Local\...\System.dll, PE32 9->46 dropped 72 Obfuscated command line found 9->72 74 Self deletion via cmd or bat file 9->74 76 Mass process execution to delay analysis 9->76 78 Tries to detect Any.run 9->78 13 Halkbank_Ekstre_20191415_081738_949589.pdf.exe 63 9->13         started        18 cmd.exe 9->18         started        20 cmd.exe 9->20         started        22 62 other processes 9->22 signatures6 process7 dnsIp8 60 ozla1a.shop 188.114.97.3, 49839, 49840, 80 CLOUDFLARENETUS European Union 13->60 62 publichouse.ventures 63.250.43.11, 443, 49838 NAMECHEAP-NETUS United States 13->62 48 C:\Users\user\AppData\...\vcruntime140.dll, PE32 13->48 dropped 50 C:\Users\user\AppData\Local\...\ucrtbase.dll, PE32 13->50 dropped 52 C:\Users\user\AppData\Local\...\softokn3.dll, PE32 13->52 dropped 54 45 other files (none is malicious) 13->54 dropped 80 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->80 82 Tries to steal Instant Messenger accounts or passwords 13->82 84 Tries to steal Mail credentials (via file / registry access) 13->84 86 6 other signatures 13->86 24 cmd.exe 1 13->24         started        26 Conhost.exe 18->26         started        28 Conhost.exe 20->28         started        30 Conhost.exe 22->30         started        32 Conhost.exe 22->32         started        34 Conhost.exe 22->34         started        36 59 other processes 22->36 file9 signatures10 process11 process12 38 conhost.exe 24->38         started        40 timeout.exe 1 24->40         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/02f309fb8e7481c72fd89103c8895d1da42b049754f97216499418f702272752/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2023-01-12 03:41:59 UTC
File Type:
PE (Exe)
Extracted files:
7
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=alzqt64oosa4ol6yseb4rck5dwscwbexkt4xefsjsqmpoarhe5ja._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/230112-s3lswsge44/
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Checks installed software on the system
Loads dropped DLL
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/25b20740-e4f6-4571-bad9-c747148d2742
Unpacked files
SH256 hash:
938580b466533dfa1461e9858fd106b60e1a52b713380915cc03afd3e4b4573c
MD5 hash:
98bdb37511634dad8d1236d91d373b26
SHA1 hash:
778cf74b4f8860cc378fa4e61aeba318197783ce
Link:
https://www.unpac.me/results/a753a526-6d91-4540-b02c-4efbde10f887/
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
Link:
https://www.unpac.me/results/a753a526-6d91-4540-b02c-4efbde10f887/
SH256 hash:
f7d98be26c813724c7cb673b53475fe660d3ef4f9930d57a550c91578c660e91
MD5 hash:
723646252e79cbb15c7817360f93a6d2
SHA1 hash:
c9ce61d71b7377456ab49c823fc756336b01f7b5
Link:
https://www.unpac.me/results/a753a526-6d91-4540-b02c-4efbde10f887/
SH256 hash:
02f309fb8e7481c72fd89103c8895d1da42b049754f97216499418f702272752
MD5 hash:
c5e141426029eb886b316a1912348a2a
SHA1 hash:
5b6d4cae226a440ee81321ebee4e7f3d13922349
Link:
https://www.unpac.me/results/a753a526-6d91-4540-b02c-4efbde10f887/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.33
Link:
https://yomi.yoroi.company/submissions/02f309fb8e7481c72fd89103c8895d1da42b049754f97216499418f702272752

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/352329/

Comments