MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b81b5d7a927299cc54748988d70523c615e82e21482652510a1a95db89b3521d. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b81b5d7a927299cc54748988d70523c615e82e21482652510a1a95db89b3521d
SHA3-384 hash: 0c696f37d24a7f8210257e6db4f5e9f6afa03febb6f83b17e64bc45b1563324640f73d29eadd19eb126d7e547ff6b00e
SHA1 hash: beae49d1d124c2bc2a335c1952c29a44be2124a5
MD5 hash: a153d1df04f2845525b6c95433fb9265
humanhash: delaware-black-november-comet
File name:Purchase Order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:708'608 bytes
First seen:2023-05-02 07:43:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:qOnKqdxnueUEl/jvxsXxs2egQVtpwtv3E6FxDz6v3z9BN1/tAD63EwHTxxlxXIrX:fd3UEltshsAv3HxDzKj9xGD63fTxx4Z9
Threatray 1'305 similar samples on MalwareBazaar
TLSH T154E48C56A024C81FFE16EB70C1B5FFA4A5F0FDB394E5102227793988EAB9F411E8D119
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 8e173733330f693b (14 x AgentTesla, 4 x Loki, 2 x njrat)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
236
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Purchase Order.exe
Verdict:
Malicious activity
Analysis date:
2023-05-02 07:48:35 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/79dfefb4-349b-4e1b-9e5d-13c9b94be29a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/385981/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6450bf55961a21dc785c5840/reports/0f4d75b0-59a4-46f6-bb67-24c4cd26e36e/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b81b5d7a927299cc54748988d70523c615e82e21482652510a1a95db89b3521d
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2dbd12d5-df12-4db4-abbf-11714004d557
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1224472
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 857434 Sample: Purchase_Order.exe Startdate: 02/05/2023 Architecture: WINDOWS Score: 100 31 www.arrogan.tech 2->31 39 Snort IDS alert for network traffic 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 8 other signatures 2->45 11 Purchase_Order.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\Purchase_Order.exe.log, CSV 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 Purchase_Order.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 2 1 15->18 injected process9 dnsIp10 33 www.sustainalistapothecary.com 18->33 35 www.dkozinov.ru 18->35 37 sustainalistapothecary.com 34.102.136.180, 49703, 80 GOOGLEUS United States 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 49 Uses netstat to query active network connections and open ports 18->49 22 NETSTAT.EXE 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b81b5d7a927299cc54748988d70523c615e82e21482652510a1a95db89b3521d/
Threat name:
ByteCode-MSIL.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2023-04-28 03:03:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xanv26usokm4yvdurgenobjdyyk6qlrbjatfeuikdkk5xcntkioq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
0bf1ad7e3d5f2bdd589d32f36db80fe2862a8b3412c7cfcdef4f839c9339d6af
AgentTesla
3e742163144a721a8d6733f9653c2acca1638eced30159467a6768aff047f25c
AgentTesla
7ac2e4aad0054c77e7a2205d156da7032021be264702c8fa76eab7ebc44556ff
AgentTesla
9d1779f9a627d5d1cd19c2a1f74f71eddb92cc11d8757d4ea3a2e7b315f4186d
AgentTesla
9e8c945e4dce2949d4c36405c11ad924f4aa57bcc9dc32a409cef23fbc725710
AgentTesla
a83adc88feb896f4fa1b09b3d5043fd506f9de5f6d695f7e18bb3d84019abb85
AgentTesla
b284d003b3fe69db7b293a9ec8d080952f6190026bbd28f2e0ab22273197a080
AgentTesla
d5d72f46517a26b05a5427b0ab8c8264f88e0428cfaeff06f34e7a69ab3c0d3e
AgentTesla
f0eef09d45e8b0edf907f9fa6f9bd84a33327f62359fef4b92508a413d68c1b3
AgentTesla
facf2fbbac21edd7550d00e6f6916f9ee598f9c3bdc2ca0feb288c139d687672
AgentTesla
+ 1'295 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ks01 rat spyware stealer trojan
Link:
https://tria.ge/reports/230502-jkv46sca2y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
335a8639aa88b194512bbd5dd4739d60304a0841d4f3490f7583fd9edb6707c1
MD5 hash:
9674e3b4cffbfd378cb384d02b7939e9
SHA1 hash:
ac75de7840ea193007bad71ada6a4f2c2a06979b
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/2dcc0b9e-52cf-49ff-9e8e-1308312d0d0d/
Parent samples :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 hash:
21f0154b51a09767f94922b81f5fcd15cf4a6390ab7314e40d0e17b2dcdfe6ba
MD5 hash:
c926563698de3a89ad20474c85122f73
SHA1 hash:
ed1a3b2527ace111e6f39880c7ee3965f301330d
Link:
https://www.unpac.me/results/2dcc0b9e-52cf-49ff-9e8e-1308312d0d0d/
SH256 hash:
af0925e4c632166ff87032bc43ea4f85a3805db3782a49724d125f44c0731114
MD5 hash:
b9897ba5e468e516e162fd3790a9ddbc
SHA1 hash:
db264c796e4a36a45af11e8a7bf71cf0dadce0f0
Link:
https://www.unpac.me/results/2dcc0b9e-52cf-49ff-9e8e-1308312d0d0d/
SH256 hash:
b79fe40a30dced124620a2c6526314a743c3423128375c7f14893d6a8d905120
MD5 hash:
866ae8b19883ed6ba14ef06bf259fbb1
SHA1 hash:
addc66ee4c53528b68a491a9f9791ccda8edac79
Link:
https://www.unpac.me/results/2dcc0b9e-52cf-49ff-9e8e-1308312d0d0d/
SH256 hash:
013d1bfe2eb3aa9c59e60023279b8af13dae011c20c6f93e4ae0086e2e4855b2
MD5 hash:
fb77fab6cb868a97b96e783016aeffa5
SHA1 hash:
8009b9b3c55dc2d2714aa33d084365fd9e6b95cb
Link:
https://www.unpac.me/results/2dcc0b9e-52cf-49ff-9e8e-1308312d0d0d/
SH256 hash:
b81b5d7a927299cc54748988d70523c615e82e21482652510a1a95db89b3521d
MD5 hash:
a153d1df04f2845525b6c95433fb9265
SHA1 hash:
beae49d1d124c2bc2a335c1952c29a44be2124a5
Link:
https://www.unpac.me/results/2dcc0b9e-52cf-49ff-9e8e-1308312d0d0d/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

AgentTesla

Executable exe b81b5d7a927299cc54748988d70523c615e82e21482652510a1a95db89b3521d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/385981/

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