MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fefe641b6760cae3c05d6201f81f695bd15acc2937c2c060f7217975ea621dcb. 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 17 File information Comments
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SHA256 hash: fefe641b6760cae3c05d6201f81f695bd15acc2937c2c060f7217975ea621dcb
SHA3-384 hash: 3ec48f03fd5b598b8559aa45ed4ba040e4f2e230a191f177d3311b61375b4143a4b2855dc0cf08fef1906743015bd682
SHA1 hash: a20b7bc86a0f5be43063782fa6e3f889b9faa723
MD5 hash: 88aa668c834ae1e32340d64b257043d4
humanhash: fruit-comet-eight-mars
File name:purchase order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:747'520 bytes
First seen:2024-06-21 07:21:40 UTC
Last seen:2024-06-21 08:23:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:oL+hE4r/i/+9W4nu5oW83b5JiR+3JE21kqpNu9m1Tlcjs3ka3QTv0a0:piW9JneECRykqpNr1Cjxa3
Threatray 2'944 similar samples on MalwareBazaar
TLSH T1ACF41283B6145D82DD3D2870B429954A0376BD26F850D34F2ACA76CE3EF3B629113A4F
TrID 53.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
22.9% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.7% (.EXE) Win64 Executable (generic) (10523/12/4)
4.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.3% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon fefefff9d3dfc0c0 (5 x AgentTesla, 1 x RemcosRAT, 1 x AsyncRAT)
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
417
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
fefe641b6760cae3c05d6201f81f695bd15acc2937c2c060f7217975ea621dcb.exe
Verdict:
Malicious activity
Analysis date:
2024-06-21 07:23:29 UTC
Tags:
netreactor agenttesla stealer
Link:
https://app.any.run/tasks/4dff0972-d9e6-4f0b-a440-ede73e3572fc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.9759.4046.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66752a1c0591661c2a1fa144win7simulatehigh_evasion
Tags:
Banker Encryption Execution Generic Network Gensteal Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
DNS request
Connection attempt
Sending a custom TCP request
Forced shutdown of a system process
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/fefe641b6760cae3c05d6201f81f695bd15acc2937c2c060f7217975ea621dcb
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8f556306-4d0c-4ba6-b6e7-ae4c11d86b66
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1460594
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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: MSBuild connects to smtp port
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1460594 Sample: purchase order.exe Startdate: 21/06/2024 Architecture: WINDOWS Score: 100 42 us2.smtp.mailhostbox.com 2->42 44 time.windows.com 2->44 46 bg.microsoft.map.fastly.net 2->46 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus / Scanner detection for submitted sample 2->54 56 14 other signatures 2->56 8 purchase order.exe 7 2->8         started        12 cksgjNi.exe 5 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\Roaming\cksgjNi.exe, PE32 8->34 dropped 36 C:\Users\user\...\cksgjNi.exe:Zone.Identifier, ASCII 8->36 dropped 38 C:\Users\user\AppData\Local\...\tmp78CF.tmp, XML 8->38 dropped 40 C:\Users\user\...\purchase order.exe.log, ASCII 8->40 dropped 58 Writes to foreign memory regions 8->58 60 Allocates memory in foreign processes 8->60 62 Adds a directory exclusion to Windows Defender 8->62 64 Injects a PE file into a foreign processes 8->64 14 MSBuild.exe 2 8->14         started        18 powershell.exe 23 8->18         started        20 schtasks.exe 1 8->20         started        66 Antivirus detection for dropped file 12->66 68 Multi AV Scanner detection for dropped file 12->68 70 Machine Learning detection for dropped file 12->70 22 MSBuild.exe 2 12->22         started        24 schtasks.exe 1 12->24         started        signatures6 process7 dnsIp8 48 us2.smtp.mailhostbox.com 208.91.199.225, 49703, 49706, 587 PUBLIC-DOMAIN-REGISTRYUS United States 14->48 72 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->72 74 Loading BitLocker PowerShell Module 18->74 26 WmiPrvSE.exe 18->26         started        28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        76 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->76 78 Tries to steal Mail credentials (via file / registry access) 22->78 80 Tries to harvest and steal ftp login credentials 22->80 82 Tries to harvest and steal browser information (history, passwords, etc) 22->82 32 conhost.exe 24->32         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fefe641b6760cae3c05d6201f81f695bd15acc2937c2c060f7217975ea621dcb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fefe641b6760cae3c05d6201f81f695bd15acc2937c2c060f7217975ea621dcb/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-06-21 06:55:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
34
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=737gig3hmdfohqc5mia7qh3jlpivvtbjg7bmayhxef4xl2tcdxfq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
19cfd625d4d50e2104dd254bb8596a316dbe8dbbba51d92dd77f4c92e89c9aa5
AgentTesla
93bac967fc7f0ec207d860387884416cfbec72dfb8dde37883bd13e1c6df4e3b
AgentTesla
a325a9a1c6a1c0d8df497b180021ae7a5860103f8ed859956679a5a0f608afae
AgentTesla
ba5b16c28def8e5d0ea0a09bf25b4d980fe89e3537f7034d775ccdf3bd9f5035
AgentTesla
fefe641b6760cae3c05d6201f81f695bd15acc2937c2c060f7217975ea621dcb
AgentTesla
+ 2'934 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla execution keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240621-h68fysvdkr/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
AgentTesla
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5200fae7-0eee-442f-b635-e2adf7074d23
Unpacked files
SH256 hash:
5d49ed6711b528a3072a734c95c82180b84657452371354360bb226d4804a408
MD5 hash:
59f0c4b84dbf9b43baa360eb4c17ec40
SHA1 hash:
cab5cb3e2bd650dedf3e77c80ad78d826b68bb3e
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/ffbce079-b502-4577-ab15-c8bdf077abd4/
Parent samples :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 hash:
63d61e76cb38e85b0297712ff9449bfc21417a42db2f9791ea9942766e7c8642
MD5 hash:
05e07bfae02d10fd0f83390def965684
SHA1 hash:
909336ddf34f51ed990e942f6b8f3639a91a1e3d
Link:
https://www.unpac.me/results/ffbce079-b502-4577-ab15-c8bdf077abd4/
SH256 hash:
38e4d46721467657ae26bd49abd1142e394bdedcd858de6c898dc3d98f27ac4e
MD5 hash:
bed37cc14792c6a2d9c57d4f672b9a50
SHA1 hash:
252ff5cd27103f48d5f06de98c4ab8276802bcf3
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/ffbce079-b502-4577-ab15-c8bdf077abd4/
Parent samples :
fefe641b6760cae3c05d6201f81f695bd15acc2937c2c060f7217975ea621dcb
eaa2120eb5d6104aa77fb5da019934bef8e84fa65606993766007712ccd0c521
7770eddde9a0ecf43aaef22995fa8a52dfa074a4f27cf65e38479087bc7138ef
09e3e78eca5cf1f5474e8998e3f87f9268f127f77bf306443855a7ae5244e15c
df83a2880c473c9491465e517ca3fdeefb533e3520b13432b7e6f063ccea8247
ace149a232afd3aa170b48d79a32502f7b3ebfb1a82de8b4fa362ae2652859b2
4626f5ee1aa57105246246df1b2aa4bdeca358e55a650e452ac529b5c39ef20e
SH256 hash:
9a577d31e2c9a641f75ddaed2b0c4009e283d51c005e3fbbca81786bff761f21
MD5 hash:
ed61a5aa0f4d1ce89382122fd40086cb
SHA1 hash:
12d91d13eec29f2fd66fa4884d26798ffb2e1b34
Link:
https://www.unpac.me/results/ffbce079-b502-4577-ab15-c8bdf077abd4/
SH256 hash:
fefe641b6760cae3c05d6201f81f695bd15acc2937c2c060f7217975ea621dcb
MD5 hash:
88aa668c834ae1e32340d64b257043d4
SHA1 hash:
a20b7bc86a0f5be43063782fa6e3f889b9faa723
Link:
https://www.unpac.me/results/ffbce079-b502-4577-ab15-c8bdf077abd4/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fefe641b6760/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/fefe641b6760cae3c05d6201f81f695bd15acc2937c2c060f7217975ea621dcb

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: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:NET
Create hunting rule
Author:malware-lu
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: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

zip 33e2bbd6a995de6bfd9a2871524a88584586ea5601bc00896e63133909820dd8

AgentTesla

Executable exe fefe641b6760cae3c05d6201f81f695bd15acc2937c2c060f7217975ea621dcb

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 33e2bbd6a995de6bfd9a2871524a88584586ea5601bc00896e63133909820dd8
  
Dropped by
MD5 ac7afbbdd78fe8eaafc60dcdc31ad707

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

Comments