MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a5c76f1d8102545a33474c1a81b7742425cea8bfc4dc81d112fc03af2d3682b. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5a5c76f1d8102545a33474c1a81b7742425cea8bfc4dc81d112fc03af2d3682b
SHA3-384 hash: 4f268a3a9724ce69cc02f46a959d1fa0b220af0bee4defd9a63fca04c84fd29e6bf38b2bff7968b58b050bfa82d64e0f
SHA1 hash: 290d01582c8ae121171a67c033b4a5dbc0b50ca7
MD5 hash: efd45b7774e67867e546d44ef60f28a6
humanhash: cold-one-bulldog-oranges
File name:5a5c76f1d8102545a33474c1a81b7742425cea8bfc4dc81d112fc03af2d3682b
Download: download sample
Signature Formbook
Create hunting rule
File size:719'872 bytes
First seen:2023-05-09 12:19:19 UTC
Last seen:2023-05-13 22:44:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:XgXU3BHFvAq75fkxhXs40fN+ARTNZ8vfdr0PTul6lYxonb:QAff0hXzkN5biN4Yinb
Threatray 2'870 similar samples on MalwareBazaar
TLSH T1F8E4F53C19BDE22BD1B8C7A58FD18427F790946B3115EEE5ACD24791432AE1239C723E
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
259
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5a5c76f1d8102545a33474c1a81b7742425cea8bfc4dc81d112fc03af2d3682b
Verdict:
Malicious activity
Analysis date:
2023-05-09 12:18:51 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/979efd86-8ad0-433d-80c1-19eee5449b56

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/387826/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/645a3a74d860ee3e1ca674f7/reports/5dbafda0-4ab7-411f-8909-72e60a4d127a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/5a5c76f1d8102545a33474c1a81b7742425cea8bfc4dc81d112fc03af2d3682b
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/07520399-294c-4e7e-888b-a8d1415cf755
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1229164
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 862145 Sample: kUp6EGaY4L.exe Startdate: 09/05/2023 Architecture: WINDOWS Score: 100 59 www.g-starnetwork.com 2->59 73 Snort IDS alert for network traffic 2->73 75 Found malware configuration 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 7 other signatures 2->79 11 kUp6EGaY4L.exe 7 2->11         started        15 XKerPwTb.exe 5 2->15         started        signatures3 process4 file5 51 C:\Users\user\AppData\Roaming\XKerPwTb.exe, PE32 11->51 dropped 53 C:\Users\...\XKerPwTb.exe:Zone.Identifier, ASCII 11->53 dropped 55 C:\Users\user\AppData\Local\...\tmpB87B.tmp, XML 11->55 dropped 57 C:\Users\user\AppData\...\kUp6EGaY4L.exe.log, ASCII 11->57 dropped 87 Uses schtasks.exe or at.exe to add and modify task schedules 11->87 89 Adds a directory exclusion to Windows Defender 11->89 91 Tries to detect virtualization through RDTSC time measurements 11->91 17 kUp6EGaY4L.exe 11->17         started        20 powershell.exe 21 11->20         started        22 schtasks.exe 1 11->22         started        93 Multi AV Scanner detection for dropped file 15->93 95 Machine Learning detection for dropped file 15->95 24 XKerPwTb.exe 15->24         started        26 schtasks.exe 1 15->26         started        28 XKerPwTb.exe 15->28         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 17->65 67 Maps a DLL or memory area into another process 17->67 69 Sample uses process hollowing technique 17->69 71 Queues an APC in another process (thread injection) 17->71 30 explorer.exe 5 1 17->30 injected 34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        38 conhost.exe 26->38         started        process9 dnsIp10 61 www.dominioncard.com 3.64.163.50, 49697, 80 AMAZON-02US United States 30->61 63 www.bookcom34567875373733744444.top 30->63 97 System process connects to network (likely due to code injection or exploit) 30->97 40 colorcpl.exe 30->40         started        43 autofmt.exe 30->43         started        45 colorcpl.exe 30->45         started        signatures11 process12 signatures13 81 Modifies the context of a thread in another process (thread injection) 40->81 83 Maps a DLL or memory area into another process 40->83 85 Tries to detect virtualization through RDTSC time measurements 40->85 47 cmd.exe 1 40->47         started        process14 process15 49 conhost.exe 47->49         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5a5c76f1d8102545a33474c1a81b7742425cea8bfc4dc81d112fc03af2d3682b/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-04-27 22:22:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ljohn4oycasulizuota2qg3xijbfz2ul7rg4qhirf7adv4wtnavq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
044c6038df71898680d1927a2a3251d58925ab0b91a5cc17ffc6599fe155f9c4
Formbook
07ad0c61940072d3f26c6706e550f970c2e3ee59d1b0a519515ebf16e013b11c
Formbook
2069c3254c5a28daea136f39db600c179ba421e70f71cdd5765575012eb42d42
Formbook
546a439160f37f428820c787aa818b08ec334c8b27b631909a6eb729947ae102
Formbook
6e6fbb8f5874a70451963264d87adb2f6aedce3c02d32881f4178e245c134537
Formbook
c2720f6ee1602fecf28ce957b38accc0ebd54a27a466872b4863bb3edf063670
Formbook
cda82f06b8f05c60f37924977b2f27bb87ccc6d4d5b8f5a0416e588345c3d162
Formbook
d40024a841668b3cb64cb894613ee64fb37288125d32ca3068007f70db30f1ed
Formbook
+ 2'860 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ce18 rat spyware stealer trojan
Link:
https://tria.ge/reports/230509-phrlvsfg64/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
1bdaffb11c20e77e5368237e17be8805b7c0a705f69b35dd054efc53a19a6e8c
MD5 hash:
285d2a6f998ad7caf3f4718f1281dd64
SHA1 hash:
cc6ff884f4fa53dd41ff484f86f4bab0ab7f88e2
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/7a25450d-1f27-42b2-abb6-bf17470a95a8/
Parent samples :
2069c3254c5a28daea136f39db600c179ba421e70f71cdd5765575012eb42d42
d40024a841668b3cb64cb894613ee64fb37288125d32ca3068007f70db30f1ed
17ffde8137ccb72df1cf904e6e550a14e03c6e7029a507731a0a721697249851
b08291dfdb766139150a65ebf9e895dea34436f76123a52116e0d03944e1a4e9
b81deeedf20176eab269dc52fb165d8d8c7f74fe3bddf09089702b37dd012ce6
5a5c76f1d8102545a33474c1a81b7742425cea8bfc4dc81d112fc03af2d3682b
dae4a7ae7b88e0e864d2dac3ebabee86916b29c609623b754fbd253d2812a491
8b9641ea4b07a7e2e48a7be9f45a20b7c0663838d5430c90b452729843f4ea21
059d5f6ce17550f0aad80205593ff14cd81bcacf6e2b3bbc1cee716f9669aa64
e8cb5925478cdb28bba3e7c553ebc3bd1a3e292d83af4c16a8bfd14a7d20b05f
SH256 hash:
58d2780bac07a53fa9ef0099c386ad23c2c5b83df99e18bbcca9895f829ef5d8
MD5 hash:
3a6ac846fbf56df68c3cb61cd18c7623
SHA1 hash:
e5b7f4e47b357f330b33330663ff5739a02d442f
Link:
https://www.unpac.me/results/7a25450d-1f27-42b2-abb6-bf17470a95a8/
SH256 hash:
725ca08de99238be04aea54bfdd4dfb0697c033163f82d5407e8ab8dc3cb8e69
MD5 hash:
44eaa81ff001be26a4053b536209a8f3
SHA1 hash:
af09ec58cb8f59be8a1818f3c18f8e8e04e79aac
Link:
https://www.unpac.me/results/7a25450d-1f27-42b2-abb6-bf17470a95a8/
SH256 hash:
5fa4826375537ea11db60aeb64c5d58ee438643198a429051d8f430fd32e9a89
MD5 hash:
6524d77473f4a82a5f57e44ef3a0895f
SHA1 hash:
8b8d3bfaff741f2c9b1587fbbd78e607ec24df8d
Link:
https://www.unpac.me/results/7a25450d-1f27-42b2-abb6-bf17470a95a8/
SH256 hash:
e5518e76f14e87bcc58a705c6f8f3a686cbffefc0e55985d17a067adfddf3688
MD5 hash:
920a2854e9c183ad2ef7d5543c296d38
SHA1 hash:
2c20da753bdf6f1a46261e2c132dd42f75c94229
Link:
https://www.unpac.me/results/7a25450d-1f27-42b2-abb6-bf17470a95a8/
SH256 hash:
5a5c76f1d8102545a33474c1a81b7742425cea8bfc4dc81d112fc03af2d3682b
MD5 hash:
efd45b7774e67867e546d44ef60f28a6
SHA1 hash:
290d01582c8ae121171a67c033b4a5dbc0b50ca7
Link:
https://www.unpac.me/results/7a25450d-1f27-42b2-abb6-bf17470a95a8/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5a5c76f1d810/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/5a5c76f1d8102545a33474c1a81b7742425cea8bfc4dc81d112fc03af2d3682b

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
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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.

Cape
Cape
https://www.capesandbox.com/analysis/387826/

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