MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 781517d23af59280628d63e2f4bd0e34300ee94b8b6d353547b797e59b899edb. 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


Formbook


Vendor detections: 13


Intelligence 13 IOCs YARA 3 File information Comments
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SHA256 hash: 781517d23af59280628d63e2f4bd0e34300ee94b8b6d353547b797e59b899edb
SHA3-384 hash: 4d8470451cdf26ed1a66b71efa7537cf497adfa525a07503b967222e8a1f0fe48ba9794df02399747215de38bf902164
SHA1 hash: 42eb23030eb89a2852b6b9f3287ea54e6240d9ac
MD5 hash: e4357910b217b295f104fa26fd7f50e8
humanhash: lake-butter-lion-stream
File name:e4357910b217b295f104fa26fd7f50e8.exe
Download: download sample
Signature Formbook
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File size:583'168 bytes
First seen:2023-08-17 19:24:30 UTC
Last seen:2023-08-17 19:33:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:0+6Np/Dl+Cx6mKScNqH+UymMdus37Wrx+HU6Ra+zmd+sx6RZcPtskiIpXXXt:gYqcoedmMdusL2x+HU6Ra+zmksx6ctjX
TLSH T10BC4126072BD0F19C97E57F7091094401BF67A7B74B6E34C8E82A4DA6969F808FC1E63
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)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
274
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
BLOCKED-MAILS.docx
Verdict:
Malicious activity
Analysis date:
2023-08-17 07:14:40 UTC
Tags:
exploit cve-2017-11882 formbook xloader
Link:
https://app.any.run/tasks/4a8f2528-56b1-4620-a113-d655b88bbfb3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/443358/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/781517d23af59280628d63e2f4bd0e34300ee94b8b6d353547b797e59b899edb
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2d5121dd-364d-4be2-a6b2-eb61fe9b7a7f
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1293111
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1293111 Sample: 7ZLS7t6RdA.exe Startdate: 17/08/2023 Architecture: WINDOWS Score: 100 35 www.atatra.com 2->35 37 atatra.com 2->37 43 Snort IDS alert for network traffic 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 8 other signatures 2->49 11 7ZLS7t6RdA.exe 3 2->11         started        signatures3 process4 signatures5 57 Tries to detect virtualization through RDTSC time measurements 11->57 14 7ZLS7t6RdA.exe 11->14         started        process6 signatures7 59 Modifies the context of a thread in another process (thread injection) 14->59 61 Maps a DLL or memory area into another process 14->61 63 Sample uses process hollowing technique 14->63 65 Queues an APC in another process (thread injection) 14->65 17 explorer.exe 5 6 14->17 injected process8 dnsIp9 29 www.nlast.cyou 91.195.240.123, 49764, 80 SEDO-ASDE Germany 17->29 31 www.orlynyml.click 43.154.67.170, 49765, 80 LILLY-ASUS Japan 17->31 33 8 other IPs or domains 17->33 41 System process connects to network (likely due to code injection or exploit) 17->41 21 colorcpl.exe 12 17->21         started        signatures10 process11 dnsIp12 39 www.gaoxiba150.com 21->39 51 Modifies the context of a thread in another process (thread injection) 21->51 53 Maps a DLL or memory area into another process 21->53 55 Tries to detect virtualization through RDTSC time measurements 21->55 25 cmd.exe 1 21->25         started        signatures13 process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/781517d23af59280628d63e2f4bd0e34300ee94b8b6d353547b797e59b899edb/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2023-08-17 04:15:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pakrpur26wjiayunmprpjpiogqya52klrnwtknkhw6l6lg4jt3nq._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:oy30 rat spyware stealer trojan
Link:
https://tria.ge/reports/230817-x4ylasec6y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
ac8768f08b9495e7023b01546679be265510f5c2512d8bc2174d846eaeb379ab
MD5 hash:
4fafab18430d6a314b9e90797d939a72
SHA1 hash:
d3a649f6f6d72cf7416b325b6ff2f0f6aa1fd312
Detections:
FormBook
Create hunting rule
win_formbook_w0
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win_formbook_auto
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win_formbook_g0
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Link:
https://www.unpac.me/results/aab3ba0f-5eba-47e4-a076-05f55ab944b4/
Parent samples :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 hash:
2ac2f55e15fd8da559f99925ceee9166ca978e94cbc53a5cb29bf02d0a76ac7f
MD5 hash:
1081db0b25581c7958e6fbff4d9aa64a
SHA1 hash:
bcb0e0fe844884a5b0d05cd3b0cc5fd7a5ff53b9
Link:
https://www.unpac.me/results/aab3ba0f-5eba-47e4-a076-05f55ab944b4/
SH256 hash:
e9fa16cd9f7d887723ef1e061a5c69964b3698dac059f92e72cf653c84d45a4d
MD5 hash:
f5fc58befa58371bb206e5c9ce74eecd
SHA1 hash:
b2eded533dc74b11db711608811ce07599ef6555
Link:
https://www.unpac.me/results/aab3ba0f-5eba-47e4-a076-05f55ab944b4/
SH256 hash:
b26a7e88c2fc5a6dbf3e1f5d8ac59c4579b3b9047f462c5cb7ee79548fa18da9
MD5 hash:
06dc1333af7361fb9ebebe5c4dbe58e4
SHA1 hash:
1adadf881904c5370e96c0a566085cf3c83ca8d0
Link:
https://www.unpac.me/results/aab3ba0f-5eba-47e4-a076-05f55ab944b4/
SH256 hash:
781517d23af59280628d63e2f4bd0e34300ee94b8b6d353547b797e59b899edb
MD5 hash:
e4357910b217b295f104fa26fd7f50e8
SHA1 hash:
42eb23030eb89a2852b6b9f3287ea54e6240d9ac
Link:
https://www.unpac.me/results/aab3ba0f-5eba-47e4-a076-05f55ab944b4/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/781517d23af59280628d63e2f4bd0e34300ee94b8b6d353547b797e59b899edb

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:NET
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Author:malware-lu
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe 781517d23af59280628d63e2f4bd0e34300ee94b8b6d353547b797e59b899edb

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/443358/
  
URLhaus
https://urlhaus.abuse.ch/url/2695772/
  
Delivery method
Distributed via web download

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