MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bb677ab79485ce6a96408eeab34427508dcf5ddf8f545e4405c71558b9a2016a. 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: 18


Intelligence 18 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bb677ab79485ce6a96408eeab34427508dcf5ddf8f545e4405c71558b9a2016a
SHA3-384 hash: 1514156942abf076d55a77ea70964cc6d4750a7f5fe7d9905226276e0f3ee88dd11e279e10cdcec207cbab1666d87997
SHA1 hash: 0c1839d90509d1e2ba20c5eee4ceb80ff1b4d787
MD5 hash: 4186fa280e157aab6df2133db5be4843
humanhash: one-delta-alabama-zulu
File name:SIM-0112025s-I002.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'060'864 bytes
First seen:2025-02-26 08:09:18 UTC
Last seen:2025-03-10 12:13:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:2u6J33O0c+JY5UZ+XC0kGso6Fa7uU+SdZJEGkSWY:Yu0c++OCvkGs9Fa7XvKY
TLSH T18735BE22B3DEC3A0CB679173BF6977016F7B78660630B85B2F980D79A950171122D7A3
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10522/11/4)
7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon 74e4d4d4ecf4d4d4 (23 x GuLoader, 20 x LummaStealer, 19 x AgentTesla)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
457
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
SIM-0112025s-I002.exe
Verdict:
Malicious activity
Analysis date:
2025-02-26 08:32:45 UTC
Tags:
evasion exfiltration smtp stealer agenttesla
Link:
https://app.any.run/tasks/c7c12c42-3c16-4db1-ab45-98a36515d77b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Generic.vh.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67becc7f28ab76d43a5d370e
Tags:
autorun autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script fingerprint keylogger lolbin microsoft_visual_cc msiexec obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67becc683afc3763bec75857/reports/068f6099-fc9f-48ab-828e-1bd10b62be91/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/bb677ab79485ce6a96408eeab34427508dcf5ddf8f545e4405c71558b9a2016a
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/6c0f2fe4-190b-44f3-b42d-2799bca43ccd
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1624396
Signature
Binary is likely a compiled AutoIt script file
Contains functionality to log keystrokes (.Net Source)
Drops VBS files to the startup folder
Found malware configuration
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Switches to a custom stack to bypass stack traces
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 Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1624396 Sample: SIM-0112025s-I002.exe Startdate: 26/02/2025 Architecture: WINDOWS Score: 100 30 smtp.yandex.ru 2->30 32 smtp.yandex.com 2->32 34 api.ipify.org 2->34 40 Found malware configuration 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 8 SIM-0112025s-I002.exe 6 2->8         started        12 wscript.exe 1 2->12         started        signatures3 process4 file5 26 C:\Users\user\AppData\Local\...\unhelp.exe, PE32 8->26 dropped 60 Binary is likely a compiled AutoIt script file 8->60 14 unhelp.exe 3 8->14         started        62 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->62 18 unhelp.exe 2 12->18         started        signatures6 process7 file8 28 C:\Users\user\AppData\Roaming\...\unhelp.vbs, data 14->28 dropped 64 Multi AV Scanner detection for dropped file 14->64 66 Binary is likely a compiled AutoIt script file 14->66 68 Drops VBS files to the startup folder 14->68 70 Switches to a custom stack to bypass stack traces 14->70 20 RegSvcs.exe 15 2 14->20         started        72 Writes to foreign memory regions 18->72 74 Maps a DLL or memory area into another process 18->74 24 RegSvcs.exe 2 18->24         started        signatures9 process10 dnsIp11 36 smtp.yandex.ru 77.88.21.158, 49705, 49709, 49978 YANDEXRU Russian Federation 20->36 38 api.ipify.org 172.67.74.152, 443, 49704, 49706 CLOUDFLARENETUS United States 20->38 48 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 20->48 50 Installs a global keyboard hook 20->50 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->52 54 Tries to steal Mail credentials (via file / registry access) 24->54 56 Tries to harvest and steal ftp login credentials 24->56 58 Tries to harvest and steal browser information (history, passwords, etc) 24->58 signatures12
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bb677ab79485ce6a96408eeab34427508dcf5ddf8f545e4405c71558b9a2016a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bb677ab79485ce6a96408eeab34427508dcf5ddf8f545e4405c71558b9a2016a/
Threat name:
Win32.Trojan.Strab
Create hunting rule
Status:
Malicious
First seen:
2025-02-26 03:15:25 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xntxvn4uqxhgvfsar3vlgrbhkcg46xo7r5kf4rafy4kvroncafva._file
Verdict:
malicious
Label(s):
unknown_loader_036
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
error
AgentTesla
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla discovery keylogger spyware stealer trojan
Link:
https://tria.ge/reports/250226-j2pzgs1js9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
Looks up external IP address via web service
Drops startup file
Executes dropped EXE
Loads dropped DLL
AgentTesla
Agenttesla family
Verdict:
Malicious
Tags:
trojan external_ip_lookup
YARA:
SUSP_Imphash_Mar23_3
Link:
https://app.threat.zone/submission/4a979d01-2075-4d4c-bc8a-3ae5d2e8ce18
Unpacked files
SH256 hash:
bb677ab79485ce6a96408eeab34427508dcf5ddf8f545e4405c71558b9a2016a
MD5 hash:
4186fa280e157aab6df2133db5be4843
SHA1 hash:
0c1839d90509d1e2ba20c5eee4ceb80ff1b4d787
Link:
https://www.unpac.me/results/fc1c2beb-3ef2-446e-b991-676469e9cb33/
SH256 hash:
4ec0efc1ce9f13bf27aa26f47ff4df8328afab446480351f4e80fae0af1a96db
MD5 hash:
13bf51bcafce7de31bddb3798ed0054c
SHA1 hash:
1af13ddc133ed17526a4a41588728b234d85f4f6
Detections:
win_agent_tesla_g2
Create hunting rule
AgentTesla
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Link:
https://www.unpac.me/results/fc1c2beb-3ef2-446e-b991-676469e9cb33/
Parent samples :
2bad79c92d04ba6aaad1bd335172582ab7c6b1a8e74673218842e247e70e673c
bb677ab79485ce6a96408eeab34427508dcf5ddf8f545e4405c71558b9a2016a
99baf9d5c23c9279310f7d426f1ec530acc0bc11894110bc96ce106c44758c10
7fecbeb83cb5c4a4cd454ef5053c7213c120b1112d338b90a9acd098a3ce3906
fa6addc3633d1cbd0cfbcae6fa5b8001a99ae9c76a49a46bd856bd6e69501aec
cf2e7b9acbfbbdd7fe69beeea53825b9df2afe3a4d00adc7042e81ee1c818d4c
aabbc82a677b1e9f26a0f7d1704889fa159bd24df7ffe9b937bdb8a922b09857
9906fd0da3bdf865ad1aa6e39670efae4ae1f9518971dbe8757d7d3b5e0f4d39
f9d286e5a30f62164bffaf413159ee0a3a2f3817f0100f72d24c1e86050dba20
59b75850acebc2f27f682fd4a67c0633552e1b32c4086a32963953b5eef4edb0
be28d0c5c726eac678f6db3a47a13e46bec770e52e596d119223ae82026ee83d
e6c14e992a954123183e8826d8004d890ed4f5f3b9899901a4a9965275424033
2ba754a0ac25585ea570c7a1676a840dfd34b3958e9b47b3b8f0504e0cf5ef57
3d5c6d39c05f201d05895f0f360cb80e7c1a6aae3e5dd1f6fdf1c4adc2b01971
5f617bb27f357a5a7ecaeccc30a9940c0299f419c655848775ff126f42cf2dff
6bafaa1d8eb2ec2fe28a3eebc5a90a24240ac8b855ec2ade615e7d6e9f737c93
99a2e944a43b8570684560b58c39ad2b64cf59b8d4f03e0ebd963f7911a48884
a6bc5543545f08dc991f050b55476a159665bb889f3a7e88527c86a8684c38ec
360b4b87d98a9e75a56ee1dd3adfbf1a017ef575bcc63c89fb556933eca33837
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bb677ab79485/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/bb677ab79485ce6a96408eeab34427508dcf5ddf8f545e4405c71558b9a2016a

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Imphash_Mar23_3
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:Internal Research
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:Windows_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

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

Malspam

AgentTesla

Executable exe bb677ab79485ce6a96408eeab34427508dcf5ddf8f545e4405c71558b9a2016a

(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
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::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
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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