MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23e34f785617fce57c1a18ab0f16a4ef8a3d850006497002fa9139f8c6200fe4. 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: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23e34f785617fce57c1a18ab0f16a4ef8a3d850006497002fa9139f8c6200fe4
SHA3-384 hash: bb6f3e8114094bea58242b8136900e7126593643a8a9cbe2a5718a283e7768b85b168cf6909a5d36bc0a4223e61d5113
SHA1 hash: b5da133867a094e6088bc21a7431ea1c71f09995
MD5 hash: 0e6b32510480efd0c697c5ad4c30b0d7
humanhash: pip-may-avocado-oregon
File name:DETALLE Y FACTURAS.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:393'684 bytes
First seen:2023-05-03 10:46:44 UTC
Last seen:2023-05-03 11:41:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 93dfc16ed07ebeb5b405221f10d12c0e (30 x GuLoader, 4 x RemcosRAT, 1 x AgentTesla)
ssdeep 6144:o4E6JRqVYtTfGUj+GkCCb9fX+JduS1uDQT91faX6fjTSG3e7G335NLH1lkK:o4EVUdpCZfX+0s1k6yG3P1lT
Threatray 15 similar samples on MalwareBazaar
TLSH T1D484F1C2D224C0CBEDB90BB25477AD1211637E6DFCB0F61E969A72599BB32C3451B807
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 31090d1101010105 (4 x GuLoader)
Reporter abuse_ch
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
2
# of downloads :
255
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DETALLE Y FACTURAS.exe
Verdict:
Malicious activity
Analysis date:
2023-05-03 10:50:51 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/fe61f3e7-e618-4476-8c9c-ea5d9b44f41b

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/386239/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.65677201.10052.13655.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Searching for the window
Searching for the Windows task manager window
Launching a process
Creating a process with a hidden window
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/82298/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
guloader overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/64523baa5642c9c405e259d1/reports/9e9b7b3c-cfd4-4aae-be2d-45a4545d641e/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/23e34f785617fce57c1a18ab0f16a4ef8a3d850006497002fa9139f8c6200fe4
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/f2da516e-42aa-4e06-97e7-db6b9fa2fd94
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1225256
Signature
Antivirus / Scanner detection for submitted sample
Mass process execution to delay analysis
Multi AV Scanner detection for submitted file
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 858222 Sample: DETALLE_Y_FACTURAS.exe Startdate: 03/05/2023 Architecture: WINDOWS Score: 76 38 mindandbodyhomecare.com 2->38 42 Antivirus / Scanner detection for submitted sample 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Yara detected GuLoader 2->46 48 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 2->48 8 DETALLE_Y_FACTURAS.exe 35 2->8         started        signatures3 process4 file5 34 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 8->34 dropped 36 C:\Users\user\AppData\Local\...\System.dll, PE32 8->36 dropped 50 Mass process execution to delay analysis 8->50 52 Tries to detect Any.run 8->52 12 DETALLE_Y_FACTURAS.exe 8->12         started        16 powershell.exe 8->16         started        18 powershell.exe 8->18         started        20 71 other processes 8->20 signatures6 process7 dnsIp8 40 mindandbodyhomecare.com 162.255.162.158, 443, 49840, 49842 PRIVATESYSTEMSUS United States 12->40 54 Tries to detect Any.run 12->54 22 conhost.exe 16->22         started        24 conhost.exe 18->24         started        26 conhost.exe 20->26         started        28 conhost.exe 20->28         started        30 conhost.exe 20->30         started        32 68 other processes 20->32 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/23e34f785617fce57c1a18ab0f16a4ef8a3d850006497002fa9139f8c6200fe4/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-02-23 19:57:43 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
21 of 37 (56.76%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=epru66cwc76ok7a2dcvq6fve56fd3biaazexaax2se47rrrab7sa._file
Verdict:
malicious
Similar samples:
1d553ac8ec0a334e66ef3e6882b0273408cda75e2601460bf2bab8d6541cf289
GuLoader
1fd5511e287f166cac6d6c1eceecf16b5fccecb56656c6a501def0da6f8ccd05
GuLoader
3a5ec656b7ac0c3c49b84b396af79a7d899ba525251084b7dfbdea4f95d04388
GuLoader
772308b9e65e5533176a0b3575bd922d7612209479652ba78849f29bf1d8f30d
GuLoader
7eb60e087050a8429a68dcf26beb489315dab14ac3b09e00611d349c38055545
GuLoader
920fe160ef3a22e69e296128b12731811355dec4de30b234ec133c27947f8945
GuLoader
92b742ab79fb91de45b3b90edbcf64515f21cb10f1585e868d92ebf3c4060f13
GuLoader
b65f37c2f7def47bd57ae2837b9c422113da608c3b37a80f62e0332fb717546f
GuLoader
b98d60109c9ccfaac33c719992c026b59e3bc54bbe9fe24bc0fecaa016a02959
GuLoader
d379ffe32dfb2d6d386b6d9c3cbae49e49241ac25a14d2974c286bfa45aa50b9
GuLoader
+ 5 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230503-mvkyqsed36/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks QEMU agent file
Loads dropped DLL
Unpacked files
SH256 hash:
ec156cb0f64588f8c34a7d45c57b250779143cf3816081829810a017f0cf966f
MD5 hash:
b3017435b63a99f6a3037cfe0c7c8b1e
SHA1 hash:
41a582b60f099b65f95ac64e1a5cdce0356a6b6f
Link:
https://www.unpac.me/results/09952aa2-927e-47f9-b24d-8ccdb5f238ea/
SH256 hash:
918939394ed24a5afb7b6fda81c6653f9e2a75d5cb0ce318f291f7cf115de7be
MD5 hash:
9c446d317b381bdae2962059e06f7e40
SHA1 hash:
4140ce545580a8a7c5bca8506253175095ec1b38
Link:
https://www.unpac.me/results/09952aa2-927e-47f9-b24d-8ccdb5f238ea/
SH256 hash:
9352c8971d0046a5526da1889f841eab8ef695e4786b6656f06af289cf32de44
MD5 hash:
402792a47412801287bc610a15cd6076
SHA1 hash:
f2990ac9e903bec596266bf1a1c340ec90ed4ee6
Link:
https://www.unpac.me/results/09952aa2-927e-47f9-b24d-8ccdb5f238ea/
SH256 hash:
23e34f785617fce57c1a18ab0f16a4ef8a3d850006497002fa9139f8c6200fe4
MD5 hash:
0e6b32510480efd0c697c5ad4c30b0d7
SHA1 hash:
b5da133867a094e6088bc21a7431ea1c71f09995
Link:
https://www.unpac.me/results/09952aa2-927e-47f9-b24d-8ccdb5f238ea/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/23e34f785617fce57c1a18ab0f16a4ef8a3d850006497002fa9139f8c6200fe4

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:adonunix2
Create hunting rule
Author:Tim Brown @timb_machine
Description:AD on UNIX

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/386239/

Comments