MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 691b3c73fa3301b9c36de80df0e7aa9d551a87ccc77a04b93786d6f1f5a41969. 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: 11


Intelligence 11 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 691b3c73fa3301b9c36de80df0e7aa9d551a87ccc77a04b93786d6f1f5a41969
SHA3-384 hash: 1843157483b73edb2548c71c39f7e70f7d583614ffbfd390756e49f39ccc437c14074683d737d8e0b2ca1ed98a2b432b
SHA1 hash: f5c792730d5abeebdba65c13b536653bc7b7cb78
MD5 hash: 0fc0385bd798e7292c27781c27710dd4
humanhash: four-johnny-alpha-quiet
File name:OS_PO#3210046374_SALE ORDER_6092022,pdf.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:424'720 bytes
First seen:2022-09-08 14:04:59 UTC
Last seen:2022-09-09 07:08:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4ea4df5d94204fc550be1874e1b77ea7 (241 x GuLoader, 29 x RemcosRAT, 17 x VIPKeylogger)
ssdeep 6144:wB+pgU9qgSfDjDbxF6fU2x3szcaJZAdZMlGnkJFJrWhSmYIp5LUIM:wgYsocfjQlJF4QmYu5lM
Threatray 65 similar samples on MalwareBazaar
TLSH T17494E192B618C9C3E83903319C7B8A696771AD7A5AE1521F329FB36E2573393050F70D
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b271e8cece6870b2 (19 x GuLoader)
Reporter TeamDreier
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Samech Thiocarbonic Korrektiv
Issuer:Samech Thiocarbonic Korrektiv
Algorithm:sha256WithRSAEncryption
Valid from:2022-04-09T20:23:57Z
Valid to:2025-04-08T20:23:57Z
Serial number: -12bc21e83ef0a639
Thumbprint Algorithm:SHA256
Thumbprint: b0df60163f8167854470a0a2f054857479d967f8650581516a8b24dfdefaea7f
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
352
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
OS_PO#3210046374_SALE ORDER_6092022,pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-09-08 14:08:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b9326795-23b2-4333-9f77-f34667fabda8

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/308801/
Detection(s):
Win.Ransomware.Cerber-9967811-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Searching for the window
Creating a file
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/37082/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6319f6e3d94ccae410857f4d/reports/647af757-5180-4cee-b016-ae49c07ec8fd/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/e1e87508-b410-42c3-873f-9b6eeec75672
Result
Threat name:
Azorult, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.phis.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1067185
Signature
Found many strings related to Crypto-Wallets (likely being stolen)
Initial sample is a PE file and has a suspicious name
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Self deletion via cmd or bat file
Snort IDS alert for network traffic
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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)
Yara detected Azorult
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 699717 Sample: OS_PO#3210046374_SALE ORDER... Startdate: 08/09/2022 Architecture: WINDOWS Score: 100 34 blsrs.shop 2->34 40 Snort IDS alert for network traffic 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 6 other signatures 2->46 9 OS_PO#3210046374_SALE ORDER_6092022,pdf.exe 6 35 2->9         started        signatures3 process4 file5 24 C:\Users\user\AppData\Local\...\System.dll, PE32 9->24 dropped 48 Tries to detect Any.run 9->48 13 OS_PO#3210046374_SALE ORDER_6092022,pdf.exe 63 9->13         started        signatures6 process7 dnsIp8 36 blsrs.shop 104.21.86.250, 49756, 49763, 80 CLOUDFLARENETUS United States 13->36 38 195.178.120.184, 49755, 80 HEXAGLOBE-ASFR unknown 13->38 26 C:\Users\user\AppData\...\vcruntime140.dll, PE32 13->26 dropped 28 C:\Users\user\AppData\Local\...\ucrtbase.dll, PE32 13->28 dropped 30 C:\Users\user\AppData\Local\...\softokn3.dll, PE32 13->30 dropped 32 45 other files (none is malicious) 13->32 dropped 50 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->50 52 Tries to steal Instant Messenger accounts or passwords 13->52 54 Tries to steal Mail credentials (via file / registry access) 13->54 56 6 other signatures 13->56 18 cmd.exe 1 13->18         started        file9 signatures10 process11 process12 20 conhost.exe 18->20         started        22 timeout.exe 1 18->22         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/691b3c73fa3301b9c36de80df0e7aa9d551a87ccc77a04b93786d6f1f5a41969/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2022-09-08 13:47:02 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
19 of 39 (48.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nenty472gma3tq3n5ag7bz5ktvkrvb6my55ajojxq3lpd5nedfuq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
595f2ae803f01eba157b6deff4687380346e15609e43cc05b541b527bb7292eb
GuLoader
67012c9555804fbfe82f17ee6d7d09196ed356053e2e778f49a998a4b718d6a6
GuLoader
867728410f8a0158bf19ee07f1001905aa803295cb9995a3a813fba7ef46770c
GuLoader
ab2036dc90a503a003ed28e17ed2cf24001848be05580b6246656f88abe01c86
GuLoader
aba19cc38e4985676b27e5a87d4e11c8bdbb8ee25f27b0482512153bb8483f0c
GuLoader
b60f2abca2515ab7c447ab5b237a50c634357f7d4c9591b76c0b44829ad30460
GuLoader
dd39027f02b3a47cb2677440f59575089a0673f134cff175d908be574ebc80ac
GuLoader
dfdedc4060f4944298bcdf25778b7f7eaaef43fdae61238d7debf88825e66294
GuLoader
efc035ff598957f35768f2d84721bbec76633c60538eda9d5ec53092f4384237
GuLoader
fb51d2963c8c570ae8aa460410d20f33ee7e2317af95868b609d9a1d4ef35d9f
GuLoader
+ 55 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader downloader
Link:
https://tria.ge/reports/220908-rdvh3abhen/
Behaviour
Enumerates physical storage devices
Drops file in Windows directory
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc
MD5 hash:
a4dd044bcd94e9b3370ccf095b31f896
SHA1 hash:
17c78201323ab2095bc53184aa8267c9187d5173
Link:
https://www.unpac.me/results/5faab1d8-2c36-4a57-85a4-ea3140a91e8f/
SH256 hash:
691b3c73fa3301b9c36de80df0e7aa9d551a87ccc77a04b93786d6f1f5a41969
MD5 hash:
0fc0385bd798e7292c27781c27710dd4
SHA1 hash:
f5c792730d5abeebdba65c13b536653bc7b7cb78
Link:
https://www.unpac.me/results/5faab1d8-2c36-4a57-85a4-ea3140a91e8f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/691b3c73fa3301b9c36de80df0e7aa9d551a87ccc77a04b93786d6f1f5a41969

File information

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

Malspam

GuLoader

Executable exe 691b3c73fa3301b9c36de80df0e7aa9d551a87ccc77a04b93786d6f1f5a41969

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/308801/

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