MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bcb4b428f2487d1dfc2d5f36fdd7f334e7915a5fad15f46835f6a8420002c327. 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: 14


Intelligence 14 IOCs YARA 5 File information Comments
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SHA256 hash: bcb4b428f2487d1dfc2d5f36fdd7f334e7915a5fad15f46835f6a8420002c327
SHA3-384 hash: d3ecb8d5f7fc88ab863e823030c6c6654dd9cc0573d14c194b6db9092950f0a648834ea34bcc562a73ae577eed3b8711
SHA1 hash: d1a3b3b37326d4f3f229785370a6207d3a4c18cc
MD5 hash: 170180f6600397459bd336d784f68d29
humanhash: foxtrot-golf-grey-south
File name:Beyan bilgileri.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:328'653 bytes
First seen:2022-12-09 10:19:43 UTC
Last seen:2022-12-09 11:28:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 97318da386948415d08cef4a9006d669 (71 x Formbook, 35 x SnakeKeylogger, 26 x AgentTesla)
ssdeep 6144:9kwqnbxKVJjrA3CSa/2jgPhOJUoPTJd4U87psxJMUzU:ksS3CSW2GmUoPTcU87pcRw
TLSH T1726412524DC7CCBBC4169ABA1F5E037E8B37E3110256242F47F84F79A9316D36A0269B
TrID 92.7% (.EXE) NSIS - Nullsoft Scriptable Install System (846567/2/133)
3.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
1.1% (.EXE) Win64 Executable (generic) (10523/12/4)
0.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
0.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
185
Origin country :
DE DE
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/344664/
Detection(s):
SecuriteInfo.com.Trojan.Garf.Gen.7.2815.10920.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Sending a custom TCP request
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63930bd404e0e79bdf41c513/reports/d9a1b4db-63b6-40bf-a8d7-2cb20ac96696/overview
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/77cbacc4-9d17-482b-986c-4eb9210b9ddc
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1131327
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in 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 dropped file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 764051 Sample: Beyan bilgileri.exe Startdate: 09/12/2022 Architecture: WINDOWS Score: 100 34 www.nsdigitalagency.com 2->34 36 nsdigitalagency.com 2->36 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus detection for URL or domain 2->54 56 Yara detected FormBook 2->56 58 3 other signatures 2->58 12 Beyan bilgileri.exe 19 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\...\sxdjahtyxs.exe, PE32 12->32 dropped 15 sxdjahtyxs.exe 12->15         started        process6 signatures7 68 Multi AV Scanner detection for dropped file 15->68 70 Maps a DLL or memory area into another process 15->70 72 Tries to detect virtualization through RDTSC time measurements 15->72 18 sxdjahtyxs.exe 15->18         started        process8 signatures9 44 Modifies the context of a thread in another process (thread injection) 18->44 46 Maps a DLL or memory area into another process 18->46 48 Sample uses process hollowing technique 18->48 50 Queues an APC in another process (thread injection) 18->50 21 explorer.exe 18->21 injected process10 dnsIp11 38 instantphotography.online 162.0.215.182, 49698, 80 ACPCA Canada 21->38 40 www.instantphotography.online 21->40 42 www.cntvc.net 21->42 60 System process connects to network (likely due to code injection or exploit) 21->60 25 help.exe 21->25         started        signatures12 process13 signatures14 62 Modifies the context of a thread in another process (thread injection) 25->62 64 Maps a DLL or memory area into another process 25->64 66 Tries to detect virtualization through RDTSC time measurements 25->66 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bcb4b428f2487d1dfc2d5f36fdd7f334e7915a5fad15f46835f6a8420002c327/
Threat name:
Win32.Trojan.NSISInject
Create hunting rule
Status:
Malicious
First seen:
2022-12-09 10:20:08 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xs2likhsjb6r37bnl43p3v7tgttzcws7vuk7i2bv62ueeaacymtq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:tc10 rat spyware stealer trojan
Link:
https://tria.ge/reports/221209-mc4ccsch78/
Behaviour
Checks processor information in registry
Enumerates system info in registry
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
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e6d5b11d-cb38-4e0e-a3b2-725b6094b4d0
Unpacked files
SH256 hash:
6e49b2b262ac38f198d3041c9026e33d18c73016e94bde4ff1842f9d3b96939d
MD5 hash:
8b5455ff988635a46fea6849913985a2
SHA1 hash:
efdf67571da97a852a88e41112a1640074877732
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/8a1717c1-37cd-4ce2-9efa-b379b903cb65/
Parent samples :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 hash:
7887384c528713b1a5cd4ab9618d3e5032d391b65422ca166201528d3b03ae3e
MD5 hash:
d2b590dbe7685e2d060bbf47af2e34bb
SHA1 hash:
70e9869f8d2c13a461a754664ed571b0bac9114e
Link:
https://www.unpac.me/results/8a1717c1-37cd-4ce2-9efa-b379b903cb65/
SH256 hash:
bcb4b428f2487d1dfc2d5f36fdd7f334e7915a5fad15f46835f6a8420002c327
MD5 hash:
170180f6600397459bd336d784f68d29
SHA1 hash:
d1a3b3b37326d4f3f229785370a6207d3a4c18cc
Link:
https://www.unpac.me/results/8a1717c1-37cd-4ce2-9efa-b379b903cb65/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bcb4b428f248/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.18
Link:
https://yomi.yoroi.company/submissions/bcb4b428f2487d1dfc2d5f36fdd7f334e7915a5fad15f46835f6a8420002c327

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe bcb4b428f2487d1dfc2d5f36fdd7f334e7915a5fad15f46835f6a8420002c327

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/344664/

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