MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e770d4bd2d65dbb979c56054b2ba5b2b6c862e8a55a9769c1c762dd73febe81c. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e770d4bd2d65dbb979c56054b2ba5b2b6c862e8a55a9769c1c762dd73febe81c
SHA3-384 hash: 10e371de5a904490cdc1f84b666987c3f13d63f74b872e24548e510c1183dc51550e29d8304d0edac62d0925272a30b2
SHA1 hash: 075a76ce4035702b33cc45e6f928b98ede112aa3
MD5 hash: 55cf812788692306c413aad62ba65b6c
humanhash: steak-virginia-hamper-pizza
File name:invoice.bat.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:382'970 bytes
First seen:2025-09-25 14:27:37 UTC
Last seen:2025-10-09 14:59:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 9a16e282eba7cc710070c0586c947693 (26 x GuLoader, 11 x VIPKeylogger, 7 x RemcosRAT)
ssdeep 6144:S7rhzC6GCTCTBB503BdTShuMLGT4fHvFbJBEuBEdRh9HRwXdKoLAFiEgMIv1zi:YzCrCTCTBwD2HvFJiSgRyYqA1gMK1z
TLSH T1198423D136B0D467EE211235053766EE2FD29C04846B3B632B957B2EBC706879E2E743
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
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) (4504/4/1)
Magika pebin
Reporter James_inthe_box
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
10
# of downloads :
175
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
invoice.bat.exe
Verdict:
Suspicious activity
Analysis date:
2025-09-25 14:28:59 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3658eb70-c682-4f4c-9937-43a5a20f531d

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/29041/
Detection(s):
SecuriteInfo.com.Trojan.NSIS.Guloader.8581.819.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68d5537d1e4783989051f578
Tags:
injection blic
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Searching for the window
Creating a file
Delayed reading of the file
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context installer masquerade microsoft_visual_cc obfuscated overlay packed packer_detected
Link:
https://www.filescan.io/uploads/68d5519d74e5a289899315b0/reports/c0404b24-098b-4f25-a0bc-9e761731ae4b/overview
Verdict:
Malicious
Labled as:
Malware_57.2
Link:
https://www.hybrid-analysis.com/sample/e770d4bd2d65dbb979c56054b2ba5b2b6c862e8a55a9769c1c762dd73febe81c
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-25T09:22:00Z UTC
Last seen:
2025-09-25T09:22:00Z UTC
Hits:
~1000
Detections:
VHO:Trojan.Win32.GuLoader.gen Trojan.Win32.Guloader.sb Trojan.NSIS.Makoob.sbb Trojan.NSIS.Makoob.sba Packed.NSIS.Krynis.sb Trojan.Win32.GuLoader.dcy Trojan.NSIS.Pakes.Krynis.sb Trojan-Downloader.Win32.Minix.sb
Link:
https://opentip.kaspersky.com/e770d4bd2d65dbb979c56054b2ba5b2b6c862e8a55a9769c1c762dd73febe81c/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/87e92134-da7a-4a96-a31a-542650b5a367
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e770d4bd2d65dbb979c56054b2ba5b2b6c862e8a55a9769c1c762dd73febe81c
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/55cf812788692306c413aad62ba65b6c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e770d4bd2d65dbb979c56054b2ba5b2b6c862e8a55a9769c1c762dd73febe81c/
Verdict:
Malicious
Threat:
Family.GULOADER
Link:
https://tip.neiki.dev/file/e770d4bd2d65dbb979c56054b2ba5b2b6c862e8a55a9769c1c762dd73febe81c
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2025-09-25 12:05:32 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=45ynjpjnmxn3s6ofmbklfos3fnwimlukkwuxnha4oyw5op7l5aoa._file
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader installer
Link:
https://tria.ge/reports/250925-rszfkazvhz/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Loads dropped DLL
Guloader family
Guloader,Cloudeye
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0184b1e9-4219-45f8-84c4-eb23c45101e6
Unpacked files
SH256 hash:
e770d4bd2d65dbb979c56054b2ba5b2b6c862e8a55a9769c1c762dd73febe81c
MD5 hash:
55cf812788692306c413aad62ba65b6c
SHA1 hash:
075a76ce4035702b33cc45e6f928b98ede112aa3
Link:
https://www.unpac.me/results/edd0e2e9-d7cd-484d-9b79-94f3a3c77df0/
SH256 hash:
68b17d8f988354adecd50d824568029ebd51d88293874ac2178cb49de2d763b7
MD5 hash:
4f2bc691e903d2cb134fb48a622df098
SHA1 hash:
25fb6367f42ece8251da055a9c318677e6786f25
Link:
https://www.unpac.me/results/edd0e2e9-d7cd-484d-9b79-94f3a3c77df0/
SH256 hash:
7853be9190489ba84dae8232e9a967cec02d941732cb4137bc9ae6a392e89fb8
MD5 hash:
3fbd78c889fa40a2e5567b980c57b7db
SHA1 hash:
303564bfa6fd5ab7a65d35ae1cd14a05643b6b5d
Link:
https://www.unpac.me/results/edd0e2e9-d7cd-484d-9b79-94f3a3c77df0/
SH256 hash:
a44ca08afb3f6bafd76aa35c259f3d599fe34f6f49ea5118626c1c1a540b0f03
MD5 hash:
81e268e27dbbcadbf116b5a9402195ab
SHA1 hash:
bd2b701b2e5e279786e179bceee2dc132a2afc37
Link:
https://www.unpac.me/results/edd0e2e9-d7cd-484d-9b79-94f3a3c77df0/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e770d4bd2d65/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.89
Link:
https://yomi.yoroi.company/submissions/e770d4bd2d65dbb979c56054b2ba5b2b6c862e8a55a9769c1c762dd73febe81c

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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.

Malspam

GuLoader

rar 4bf4ac4e76372cbe7e847257a054398146da9e93abc3c6ee8e444513d8d37fbc

GuLoader

Executable exe e770d4bd2d65dbb979c56054b2ba5b2b6c862e8a55a9769c1c762dd73febe81c

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/29041/
  
Dropped by
SHA256 4bf4ac4e76372cbe7e847257a054398146da9e93abc3c6ee8e444513d8d37fbc
  
Dropped by
MD5 21497194af936c2107eec5341ed0b1e9

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