MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ded5b8b5d57f0e7d66f85cfd7067af3a22e6ce2877cb4d1fc5eb88963559316b. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
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SHA256 hash: ded5b8b5d57f0e7d66f85cfd7067af3a22e6ce2877cb4d1fc5eb88963559316b
SHA3-384 hash: e40a5ad0f36dcc5493a3b8b84504d277247956b2c0023276b336ea6892fe4cb80209879daba49ca96937eda70a5b86e9
SHA1 hash: 23a617e8ede77cdcad02dfc33092eaf3ed685138
MD5 hash: eb0207a19c2f35c65c42c780d6cb2626
humanhash: three-rugby-social-apart
File name:MT103_Ref0012773838 Confirmation transfer Copy.exe
Download: download sample
Signature Formbook
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File size:78'336 bytes
First seen:2022-06-08 13:45:43 UTC
Last seen:2022-06-08 14:50:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 768:dKvCWiiP64bYjSU2Ip4jBqltCF0AxEjenoB69+Fxk:M+iP64bYjSFHBWAxEjc+c
TLSH T1207333E2B616DDD8DC164BF20C76962000675E5C88A9D50D30EA3F3FB7B335328A6D5A
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 68d8d8c8d9a9c1d9 (96 x SnakeKeylogger, 67 x RemcosRAT, 66 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
284
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MT103_Ref0012773838 Confirmation transfer Copy.exe
Verdict:
No threats detected
Analysis date:
2022-06-08 19:39:35 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3df9062d-cb5c-4457-bb2c-204c769974b9

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/277801/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.6471.25628.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching cmd.exe command interpreter
Creating a process with a hidden window
Forced system process termination
DNS request
Sending a custom TCP request
Running batch commands
Launching a process
Creating a file in the %AppData% subdirectories
Creating a file
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62a0a822e22d00d5e195f141/reports/ccd34f02-cab0-4205-ad5f-b21d6ab1e770/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ddba66d3-42db-4199-a159-4c71912d054e
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1009059
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
Initial sample is a PE file and has a suspicious name
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)
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
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected Costura Assembly Loader
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 641556 Sample: MT103_Ref0012773838 Confirm... Startdate: 08/06/2022 Architecture: WINDOWS Score: 100 48 www.servicemyloanvandykmortgage.com 2->48 64 Malicious sample detected (through community Yara rule) 2->64 66 Antivirus detection for URL or domain 2->66 68 Multi AV Scanner detection for dropped file 2->68 70 10 other signatures 2->70 11 MT103_Ref0012773838 Confirmation transfer Copy.exe 15 7 2->11         started        signatures3 process4 dnsIp5 52 verifyinfo-sessio141.cf 103.72.77.117, 443, 49724 TOMATOWEB-BDTomatoWebPvtLimitedBD Bangladesh 11->52 42 C:\Users\user\AppData\Roaming\...\firefox.exe, PE32 11->42 dropped 44 C:\Users\user\...\firefox.exe:Zone.Identifier, ASCII 11->44 dropped 46 MT103_Ref001277383...ansfer Copy.exe.log, ASCII 11->46 dropped 80 Creates an undocumented autostart registry key 11->80 82 Sample uses process hollowing technique 11->82 84 Drops executable to a common third party application directory 11->84 16 RegAsm.exe 11->16         started        19 RegAsm.exe 11->19         started        21 cmd.exe 1 11->21         started        23 3 other processes 11->23 file6 signatures7 process8 signatures9 54 Modifies the context of a thread in another process (thread injection) 16->54 56 Maps a DLL or memory area into another process 16->56 58 Sample uses process hollowing technique 16->58 60 Queues an APC in another process (thread injection) 16->60 25 explorer.exe 16->25 injected 62 Tries to detect virtualization through RDTSC time measurements 19->62 29 conhost.exe 21->29         started        31 timeout.exe 1 21->31         started        33 conhost.exe 23->33         started        process10 dnsIp11 50 www.parmateb.com 25->50 78 System process connects to network (likely due to code injection or exploit) 25->78 35 svchost.exe 25->35         started        signatures12 process13 signatures14 72 Modifies the context of a thread in another process (thread injection) 35->72 74 Maps a DLL or memory area into another process 35->74 76 Tries to detect virtualization through RDTSC time measurements 35->76 38 cmd.exe 1 35->38         started        process15 process16 40 conhost.exe 38->40         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ded5b8b5d57f0e7d66f85cfd7067af3a22e6ce2877cb4d1fc5eb88963559316b/
Threat name:
ByteCode-MSIL.Downloader.Seraph
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Status:
Malicious
First seen:
2022-06-08 02:27:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
19 of 26 (73.08%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=33k3rnovp4hh2zxylt6xaz5phirontrio7fu2h6f5oejmnkzgfvq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
masslogger
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:formbook family:xloader campaign:arna loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220608-q2ypyshggl/
Behaviour
Delays execution with timeout.exe
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Reads user/profile data of web browsers
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
ded5b8b5d57f0e7d66f85cfd7067af3a22e6ce2877cb4d1fc5eb88963559316b
MD5 hash:
eb0207a19c2f35c65c42c780d6cb2626
SHA1 hash:
23a617e8ede77cdcad02dfc33092eaf3ed685138
Link:
https://www.unpac.me/results/a42103c6-2b52-4d88-b436-731afd337623/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ded5b8b5d57f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/ded5b8b5d57f0e7d66f85cfd7067af3a22e6ce2877cb4d1fc5eb88963559316b

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
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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.

Malspam

Formbook

Executable exe ded5b8b5d57f0e7d66f85cfd7067af3a22e6ce2877cb4d1fc5eb88963559316b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/277801/

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