MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7cb8f90415dcf72737ecdbf484c7edcc851d40e2cdadf12dc9f66999d5f16de3. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
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SHA256 hash: 7cb8f90415dcf72737ecdbf484c7edcc851d40e2cdadf12dc9f66999d5f16de3
SHA3-384 hash: e32c258c2421bb185a7b51d845fb8710038dbe21726824e02b0760d26fbe46e38ec912ce55a309d3e6db1d0daacee045
SHA1 hash: 0b99b0e5cb0427097c8e6dcd7dbdd5fd2456b0a2
MD5 hash: 9c27c1a283b1ee53e3914de800554f76
humanhash: cardinal-music-massachusetts-ink
File name:7cb8f90415dcf72737ecdbf484c7edcc851d40e2cdadf12dc9f66999d5f16de3
Download: download sample
Signature Formbook
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File size:819'200 bytes
First seen:2022-06-07 11:05:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:1luLLJtVz+GI/oVvfPVXlzBgzd6MUWBrlrF:14ptFpVfVxBg5BRd
TLSH T1A005C0023145ADE6E8532EF6586FD5201279AE6E9035C61D3783BB2B55F330220ABF5F
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% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 92b2aca6a6ba8e8e (6 x Formbook, 4 x AgentTesla, 4 x SnakeKeylogger)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
268
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7cb8f90415dcf72737ecdbf484c7edcc851d40e2cdadf12dc9f66999d5f16de3
Verdict:
Malicious activity
Analysis date:
2022-06-07 11:06:20 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1928189f-70ac-4799-ae5e-d3f5dae7be65

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/277338/
Detection(s):
Win.Packed.Pwsx-9950616-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed replace.exe update.exe
Link:
https://www.filescan.io/uploads/629f312abea023f99d8861b5/reports/82127b54-8a6d-430f-a1a9-64c63eeadb33/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/f2ce8b81-744c-426a-b3ef-f92ffa2cf27b
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1008078
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
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
Self deletion via cmd or bat file
Snort IDS alert for network traffic
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 640574 Sample: RX7mXzJ1T7 Startdate: 07/06/2022 Architecture: WINDOWS Score: 100 33 www.vivitdeal.com 2->33 35 connect.shopbase.com 2->35 39 Snort IDS alert for network traffic 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 7 other signatures 2->45 11 RX7mXzJ1T7.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\RX7mXzJ1T7.exe.log, ASCII 11->31 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 RX7mXzJ1T7.exe 11->15         started        18 RX7mXzJ1T7.exe 11->18         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 20 explorer.exe 15->20 injected process9 dnsIp10 37 www.morningstargrange.com 54.38.220.85, 49766, 80 OVHFR France 20->37 47 System process connects to network (likely due to code injection or exploit) 20->47 24 explorer.exe 20->24         started        signatures11 process12 signatures13 49 Self deletion via cmd or bat file 24->49 51 Modifies the context of a thread in another process (thread injection) 24->51 53 Maps a DLL or memory area into another process 24->53 55 Tries to detect virtualization through RDTSC time measurements 24->55 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7cb8f90415dcf72737ecdbf484c7edcc851d40e2cdadf12dc9f66999d5f16de3/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-05-25 11:25:33 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ps4psbav3t3son7m3p2ijr7nzscr2qhczww7cloj6zuztvprnxrq._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:w2k1 rat spyware stealer trojan
Link:
https://tria.ge/reports/220607-m7ebqahhaj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Unpacked files
SH256 hash:
31f48cc3156dcbebaab11782a03674f75dac763d9175a5524b3f2b52c4378d58
MD5 hash:
0561ac195b1b6c0a5518aa60298abb2a
SHA1 hash:
ad207bc4b3698fe82eb534e790b514c882427498
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/e7033ae1-9e3c-4c42-997e-87fcad29a2a8/
Parent samples :
b4aa332e0b01fcc44224b62f8d7b306b862523b7a276e38efdaeea019ce6d7d2
b49b339fee0e9543d77688426378faefab1b4fca1e310df88fb8ed376b5456d3
7cb8f90415dcf72737ecdbf484c7edcc851d40e2cdadf12dc9f66999d5f16de3
c9e0f97f02b1ec201cf601fab351cfe4d2ac5c5271e1cf282e91e3d5712dc1d6
SH256 hash:
cd90a028a9d842f9ee5f6197e72e28656ac3af384c488a76a29290066a44379a
MD5 hash:
457c75342fe97e8f7875c09f5ff64ad0
SHA1 hash:
ef1f6da0d1db137e7b9dc857f059e40042fde07c
Link:
https://www.unpac.me/results/e7033ae1-9e3c-4c42-997e-87fcad29a2a8/
SH256 hash:
97527da0af9e8321eb6aa2c760bc3a6453341b0fef90c44595a02945c2dd3144
MD5 hash:
332f0164e6b19699174c491d839d6ec9
SHA1 hash:
eadeadeaf7bf3978d86d633bd054e4ff317ecc40
Link:
https://www.unpac.me/results/e7033ae1-9e3c-4c42-997e-87fcad29a2a8/
SH256 hash:
56a18c4f17cb028e2e87e3bd4b7fd85ebd3cd6d92fadf12bcc07f22c24fe35b6
MD5 hash:
85e73ef1b1bf3a6afe4ed9be87341546
SHA1 hash:
40216a7f1d8016ff1df2976fff21766d921cd32d
Link:
https://www.unpac.me/results/e7033ae1-9e3c-4c42-997e-87fcad29a2a8/
SH256 hash:
7cb8f90415dcf72737ecdbf484c7edcc851d40e2cdadf12dc9f66999d5f16de3
MD5 hash:
9c27c1a283b1ee53e3914de800554f76
SHA1 hash:
0b99b0e5cb0427097c8e6dcd7dbdd5fd2456b0a2
Link:
https://www.unpac.me/results/e7033ae1-9e3c-4c42-997e-87fcad29a2a8/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7cb8f90415dc/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/7cb8f90415dcf72737ecdbf484c7edcc851d40e2cdadf12dc9f66999d5f16de3

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.

Cape
Cape
https://www.capesandbox.com/analysis/277338/

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