MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81c1043490096d6c818bf0eae1bfe8248d7f9b3b1217d4c769de6f29e321e635. 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


AgentTesla


Vendor detections: 15


Intelligence 15 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81c1043490096d6c818bf0eae1bfe8248d7f9b3b1217d4c769de6f29e321e635
SHA3-384 hash: ca21b7b7eea1b9b8b3755e199c34f9b5447e43fc353c120da5fda1d98f26e7f329867ef775d616e80203c62f1c8f5e79
SHA1 hash: 0491c1300641db70661d790439b54a9d0276afd2
MD5 hash: 51db45892803b947277b04005594f3aa
humanhash: uranus-mango-fillet-timing
File name:RFQ# 10925.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'309'696 bytes
First seen:2024-08-09 00:56:10 UTC
Last seen:2024-08-14 13:47:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 948cc502fe9226992dce9417f952fce3 (1'182 x CredentialFlusher, 446 x Formbook, 231 x AgentTesla)
ssdeep 24576:LqDEvCTbMWu7rQYlBQcBiT6rprG8aOHyLz5ij5yZCh9Br:LTvC/MTQYxsWR7aOHgMkZCPB
TLSH T1E255BF023381B016FF6B9132CBB6E65157BC6B260123A51F1E983979BAF05F3163D663
TrID 68.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.5% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon c48684242e2a3684 (3 x Loki, 2 x RemcosRAT, 1 x NanoCore)
Reporter threatcat_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
370
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ# 10925.pdf.exe
Verdict:
No threats detected
Analysis date:
2024-08-09 00:56:59 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c65f54ee-218a-4760-b07d-b5d5ed9120af

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Rogue.0hr.20240808-2237.UNOFFICIAL
Create hunting rule

Win.Malware.Silentall-10034109-0
Create hunting rule

SecuriteInfo.com.Trojan.Generic.33203615.28472.17882.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66b56960b35234d5cc65bc6d
Tags:
Discovery Generic Network Stealth Shellcodecrypter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Unauthorized injection to a system process
Forced shutdown of a browser
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/81c1043490096d6c818bf0eae1bfe8248d7f9b3b1217d4c769de6f29e321e635
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/76586d0c-137e-40ea-9dee-7dd2b9d43676
Result
Threat name:
PureLog Stealer, Snake Keylogger
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1490355
Signature
.NET source code contains method to dynamically call methods (often used by packers)
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
Found API chain indicative of sandbox detection
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Double Extension File Execution
Switches to a custom stack to bypass stack traces
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Yara detected Snake Keylogger
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/81c1043490096d6c818bf0eae1bfe8248d7f9b3b1217d4c769de6f29e321e635
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81c1043490096d6c818bf0eae1bfe8248d7f9b3b1217d4c769de6f29e321e635/
Threat name:
Win32.Spyware.Snakekeylogger
Create hunting rule
Status:
Malicious
First seen:
2024-08-08 18:48:50 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
22 of 24 (91.67%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qhaqineqbfwwzaml6dvodp7iesgx7gz3cil5jr3j3zxstyzb4y2q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Result
Malware family:
snakekeylogger
Create hunting rule
Score:
  10/10
Tags:
family:snakekeylogger collection credential_access discovery keylogger stealer
Link:
https://tria.ge/reports/240809-k5dajasgkg/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Credentials from Password Stores: Credentials from Web Browsers
Snake Keylogger
Snake Keylogger payload
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/198a077c-cafd-49ae-87c6-b7ab05441e67
Unpacked files
SH256 hash:
198e4ff228b2152de2eb9322023c1669b9c8ed339b53b24a39f574a0968f4c47
MD5 hash:
f23a0487f65ce3b4d7e84d7142b4e2f4
SHA1 hash:
5f4c5ab551a5b0779b1b85cef8636c5980f291ed
Detections:
snake_keylogger
Create hunting rule
win_404keylogger_g1
Create hunting rule
MAL_Envrial_Jan18_1
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
RedLine_Campaign_June2021
Create hunting rule
Link:
https://www.unpac.me/results/1fe3c773-204f-4068-ae3a-aece7eff852a/
SH256 hash:
af09a0d44aeb66c330a87e2def3be4803cac8dae5759bd238aa9fef4e18142fd
MD5 hash:
d1eb1a68eec510a5ea330187e1a16e0b
SHA1 hash:
5123010cbb2d42610effb8871460bb7e79fe4bc1
Detections:
snake_keylogger
Create hunting rule
win_404keylogger_g1
Create hunting rule
MAL_Envrial_Jan18_1
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/1fe3c773-204f-4068-ae3a-aece7eff852a/
SH256 hash:
5130bbfc64ba560cbc429ef3add6b9d3dbbc745e33a9313bb5a8988d45658d54
MD5 hash:
4f353b81eea8c26c55bc7bae562f0633
SHA1 hash:
c7a74ce48e523700326cb7892d7777582e0901ca
Detections:
win_samsam_auto
Create hunting rule
MAL_Malware_Imphash_Mar23_1
Create hunting rule
SUSP_OBF_NET_Reactor_Native_Stub_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/1fe3c773-204f-4068-ae3a-aece7eff852a/
SH256 hash:
81c1043490096d6c818bf0eae1bfe8248d7f9b3b1217d4c769de6f29e321e635
MD5 hash:
51db45892803b947277b04005594f3aa
SHA1 hash:
0491c1300641db70661d790439b54a9d0276afd2
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/1fe3c773-204f-4068-ae3a-aece7eff852a/
Malware family:
RedNet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/81c104349009/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/81c1043490096d6c818bf0eae1bfe8248d7f9b3b1217d4c769de6f29e321e635

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:pe_detect_tls_callbacks
Create hunting rule

File information

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

Malspam

SnakeKeylogger

zip fb6f73bb0367c0a581cc75d76b925f5b08c128887e4967b2503f6258bb781874

AgentTesla

Executable exe 81c1043490096d6c818bf0eae1bfe8248d7f9b3b1217d4c769de6f29e321e635

(this sample)

  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 fb6f73bb0367c0a581cc75d76b925f5b08c128887e4967b2503f6258bb781874
  
Dropped by
MD5 9bd50fc23ff26bd01695f3da830b2727
  
Dropped by
SHA256 e43234bd745a2268ecb552b1c42df0d5e7caf48c91034e434a32a2b428640240
  
Dropped by
MD5 c019af47f0ca6fcbdf0c6688c72d275d

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
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::GetAce
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoCreateInstanceEx
ole32.dll::CoInitializeSecurity
ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringW
WINMM.dll::timeGetTime
WINMM.dll::waveOutSetVolume
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
ADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
ADVAPI32.dll::CreateProcessWithLogonW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetAddConnection2W
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::BlockInput
USER32.dll::CloseDesktop
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

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