MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a769d62738c3135274416dec8a9ae7cdf15291a20bb1a20486490eb859ea6936. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a769d62738c3135274416dec8a9ae7cdf15291a20bb1a20486490eb859ea6936
SHA3-384 hash: b003de927905bbb55746781afda4c35c0de2b708dde7e4a3b26fb5633e548ed9495ba2568298b5a97172b56cead1749b
SHA1 hash: bb29ecf604bdeeb62ec8ba224d514fb301b5f7d3
MD5 hash: 75c919d541a89dfb7b9ba59bad8f0bdd
humanhash: maryland-missouri-mirror-muppet
File name:Address Confirmation and Receipt.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:527'523 bytes
First seen:2024-03-20 09:18:06 UTC
Last seen:2024-03-20 21:07:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (527 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 12288:bVY9YvUhDIqaPcWMlhNBRqzcF6Xjkjazb4+Z39/8E:be9YvUhuC3PqA4Xjkjtq6E
Threatray 581 similar samples on MalwareBazaar
TLSH T1F8B41201BF46D1BBD00999724D5743B45FB5ECF056E02BAB73443B3EAA33291890FAA5
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) (4504/4/1)
File icon (PE):PE icon
dhash icon 00cce4fccce4fc04 (4 x GuLoader, 1 x AgentTesla)
Reporter threatcat_ch
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
4
# of downloads :
358
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
a769d62738c3135274416dec8a9ae7cdf15291a20bb1a20486490eb859ea6936.exe
Verdict:
Malicious activity
Analysis date:
2024-03-20 09:21:08 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/0aacd32d-2320-4d94-a5e4-9cf6dea4c3b8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Siggen8.40546.2143.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Windows subdirectories
Launching a process
Running batch commands
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/65faaa0b5cd908a33db9f6ee/reports/e703a9c8-0f34-4145-bbff-4f00e31f44d7/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/a769d62738c3135274416dec8a9ae7cdf15291a20bb1a20486490eb859ea6936
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:
Malicious
Link:
https://analyze.intezer.com/analyses/5ac6f80b-c306-4f0e-968a-0f4642ef24ff
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1412250
Signature
Found malware configuration
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Obfuscated command line found
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1412250 Sample: Address Confirmation and Re... Startdate: 20/03/2024 Architecture: WINDOWS Score: 100 27 smtp.gmail.com 2->27 29 sjohen.com 2->29 31 api.ipify.org 2->31 49 Found malware configuration 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 Yara detected AgentTesla 2->53 55 4 other signatures 2->55 8 Address Confirmation and Receipt.exe 2 16 2->8         started        signatures3 process4 file5 25 C:\Users\user\AppData\...\Karnelia.Aft, ASCII 8->25 dropped 57 Suspicious powershell command line found 8->57 12 powershell.exe 18 8->12         started        signatures6 process7 signatures8 59 Obfuscated command line found 12->59 61 Writes to foreign memory regions 12->61 15 wab.exe 15 8 12->15         started        19 dllhost.exe 12->19         started        21 conhost.exe 12->21         started        23 cmd.exe 1 12->23         started        process9 dnsIp10 33 sjohen.com 84.247.147.161, 443, 49712 SKYLOGIC-ASIT Norway 15->33 35 smtp.gmail.com 142.251.16.109, 49714, 49715, 49716 GOOGLEUS United States 15->35 37 api.ipify.org 172.67.74.152, 443, 49713 CLOUDFLARENETUS United States 15->37 39 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->39 41 Tries to steal Mail credentials (via file / registry access) 15->41 43 Tries to harvest and steal browser information (history, passwords, etc) 15->43 45 Installs a global keyboard hook 15->45 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->47 signatures11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a769d62738c3135274416dec8a9ae7cdf15291a20bb1a20486490eb859ea6936
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a769d62738c3135274416dec8a9ae7cdf15291a20bb1a20486490eb859ea6936/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-03-20 08:27:38 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
21 of 23 (91.30%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u5u5mjzyymjve5cbnxwivgxhzxyvfencboy2ebegjehlqwpkne3a._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
20c6326c049e6fb205a5feb6266b8ed8061a31fd770dc7771c61995bd701fe7b
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3854783710a249c1b8d553d298623ec63cc957281d703af14cf778bf18c06a34
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4c97b96baa6e3c1ef907482abe84083c8813d45545d138ec5b9cc456f0027e1b
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5fd79e8094fb1ac9dbc167219bc3218cf07a5679edc11f7847c5cd0b2e756309
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6206e88335305e4230178b9e72d7c0619cdddf1d470fad04d7a5af3cc3e76dbd
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9845e47adb818b782750715818bf6e47883961eaaf623db8c9554c03d371903c
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e0516ae8e938052542c7e7a89713f02c0acf64a7ae9fe210ddbcd618d995e70b
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e156c4e8e53c6b93166fea54fb521d9eb8bc74143ad52697a28809f5639205cf
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f27ddc5f225f50a392bfcf9cbd59557d445f5ad47f1ad31f1a899aec1ec92611
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f29f7cf714a8eef6c8509ea9fc3d6adbedf98e14b0f142bd8bec1fb7de78639b
GuLoader
+ 571 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:guloader downloader keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240320-ldly2aeb81/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Looks up external IP address via web service
AgentTesla
Guloader,Cloudeye
Unpacked files
SH256 hash:
a769d62738c3135274416dec8a9ae7cdf15291a20bb1a20486490eb859ea6936
MD5 hash:
75c919d541a89dfb7b9ba59bad8f0bdd
SHA1 hash:
bb29ecf604bdeeb62ec8ba224d514fb301b5f7d3
Link:
https://www.unpac.me/results/05c02bc4-e449-439b-8bdf-ae21701c9fb8/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a769d62738c3/report/overview.html
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/a769d62738c3135274416dec8a9ae7cdf15291a20bb1a20486490eb859ea6936

File information

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

Malspam

GuLoader

Executable exe a769d62738c3135274416dec8a9ae7cdf15291a20bb1a20486490eb859ea6936

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::SetFileSecurityW
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileExW
KERNEL32.dll::MoveFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

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