MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 87f10102a623e0a9e8f37e044736a264c8948c38685ff5d55750662010e09c5a. 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: 17


Intelligence 17 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 87f10102a623e0a9e8f37e044736a264c8948c38685ff5d55750662010e09c5a
SHA3-384 hash: a1c0943f4d72f93d296dc16b8c86a6c6fcdea3197198f34269249f5925c9bebadeac03ba5b6d9f21a890735f6457b500
SHA1 hash: e6001b6261e1ebdbd55eff9028015d76ab6690fc
MD5 hash: 837274cdaaba106edd958c9f51e4cfca
humanhash: river-summer-zulu-lemon
File name:837274cdaaba106edd958c9f51e4cfca.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:560'128 bytes
First seen:2023-10-31 06:52:49 UTC
Last seen:2023-10-31 08:40:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:yUR6NkoanXvNpyrQZaESRiGzKaD1yNn5NPB1ofvdkKrvJiQb:yUR6+5HSRRzKaD0D90fxhi
Threatray 2'135 similar samples on MalwareBazaar
TLSH T101C423445398CFA1F8ADCBFF99F0407992F1E1171541FF2C8FA995D92DB1B821B22862
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)
File icon (PE):PE icon
dhash icon 08b266ca84c862b4 (6 x AgentTesla, 6 x Formbook, 4 x Loki)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
315
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Mensajes en cuarentena(30).zip
Verdict:
Malicious activity
Analysis date:
2023-10-31 08:06:07 UTC
Tags:
exploit cve-2017-11882 loader formbook xloader
Link:
https://app.any.run/tasks/b1b41e69-a630-4e5e-a4e9-edce3edbba82

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/457262/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6540a4534ebf05ac3f3f5dbb/reports/ae084e1e-a30e-4310-935e-3e654d1921e8/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/87f10102a623e0a9e8f37e044736a264c8948c38685ff5d55750662010e09c5a
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/4dea5276-264b-435b-8e38-8c4bdab172e0
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1334680
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/87f10102a623e0a9e8f37e044736a264c8948c38685ff5d55750662010e09c5a
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/87f10102a623e0a9e8f37e044736a264c8948c38685ff5d55750662010e09c5a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-10-31 06:26:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q7yqcavgepqkt2htpyceonvcmtejjdbynbp7lvkxkbtcaehatrna._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0b97c43d0eb22c21c8c4be37b6b45a1fd2acc9aa8c2a30012a06c2a0fb23a1f2
Formbook
21140ae60aa6ba79a4d6cfc5aa5fd4cf4aa08ac5a522a4a2393f4c9552224529
Formbook
21590f5c7b6ac30d1c7dd02ac222e9803694a2d3b8036875e23ba10943c331d2
Formbook
92a11969793b832918bec3384ffadd4c626a7888d97454f4790529566d462022
Formbook
982a9a52e532bbfe52941c4ab95c2899c1af75e9a3eee2b1977e3f49e8a3e71e
Formbook
9e986879ac645f058d5deb6415cc90f40130a67e3d4263be55dbe1a8ff68ad2d
Formbook
be001461acb26523b913f93761b14f56fc7dd7f256e90ae53b40f0b40dd859b7
Formbook
c1aa65f7c2cc6beb7052c8ada46a3139fc01da66890f4153a7c5761292b71d61
Formbook
e3adb8e74cd21839185ef70b6430c229a34636536412afc08bfbf1b8a610b359
Formbook
+ 2'125 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:o5gu rat spyware stealer trojan
Link:
https://tria.ge/reports/231031-hnpacshb41/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
06a5eaa46cd5ea4f79f56bc97213f30a8f348b3eea97aa46e54f962752bc8fb9
MD5 hash:
3bedfb033cbab1368aedfee7033f9f4a
SHA1 hash:
e37016043d77c05aa1cfed6307b0f4d4ec42dfb6
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/c7682616-887d-4764-8535-d6e266538a80/
Parent samples :
e3adb8e74cd21839185ef70b6430c229a34636536412afc08bfbf1b8a610b359
21590f5c7b6ac30d1c7dd02ac222e9803694a2d3b8036875e23ba10943c331d2
9e986879ac645f058d5deb6415cc90f40130a67e3d4263be55dbe1a8ff68ad2d
0b97c43d0eb22c21c8c4be37b6b45a1fd2acc9aa8c2a30012a06c2a0fb23a1f2
87f10102a623e0a9e8f37e044736a264c8948c38685ff5d55750662010e09c5a
98266e6f5d23aad6132b20b3d2a9c3a0bf009eea9935fa9689e9d9ed66acf244
2230b251f4acccb3ec401aa9d70e85a5dc390ba5bcf25a4f11761256d1d18016
4e0083ec0b7eac1f6a517e47fc77f8aa0fe7229dc4f8ad8dc42c170ebc2dd2c1
ccbdd15e650bb5d3bb0e22c96cfb7d03b38b1fcbd7f7c161c87726fa04df6570
97989a17279bcd8fcfccf4fc1442517ff46eba38c08fa8dc3eac65b114ba8c32
6d911bfb01daa6f3acafd3ccb33b432d806c82b2b35c0c3408d822bf8c6b4c00
9669bb3304a589cfcbd3faca14cfa67aaf2b1bdb5bf61c285292e872c03ba5bf
f5fd6d272de7ed1db622c1e3fc51f5ce84338b700b94b7f86564e9f7f3de6b54
a5193fd07f44ded01330a618e8f1e1d9243171dc5433b1e64bc3ded9e05b0fd8
SH256 hash:
797e57bd74a68f7b4808a213f5c319ee4f4b023bc73088175d4393dfee9fe329
MD5 hash:
3c927935fbd608e7628cc2c5ad7d52fd
SHA1 hash:
ee0c880c0614ac960fd641f7d479233584aed1d8
Link:
https://www.unpac.me/results/c7682616-887d-4764-8535-d6e266538a80/
SH256 hash:
f1784d5c102c04f6441013e07cb83afed965aa03e0ead16dc100c9296d5e1f9c
MD5 hash:
e0164eabd31943c104a8fc5d1b746555
SHA1 hash:
e8eaaaf0766c196f75e62f4476719b99ed7f013d
Link:
https://www.unpac.me/results/c7682616-887d-4764-8535-d6e266538a80/
SH256 hash:
321b9837024c717dd5b2ad4217a7e2734e368bdb58918437baf42f46a34149b1
MD5 hash:
91412a60691a2512ab0becb2f7002a32
SHA1 hash:
70fe342dd601a4b6a3fb67202c9ea3b3fea31b5c
Link:
https://www.unpac.me/results/c7682616-887d-4764-8535-d6e266538a80/
SH256 hash:
87f10102a623e0a9e8f37e044736a264c8948c38685ff5d55750662010e09c5a
MD5 hash:
837274cdaaba106edd958c9f51e4cfca
SHA1 hash:
e6001b6261e1ebdbd55eff9028015d76ab6690fc
Link:
https://www.unpac.me/results/c7682616-887d-4764-8535-d6e266538a80/
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/87f10102a623e0a9e8f37e044736a264c8948c38685ff5d55750662010e09c5a

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
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
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.

Web download

Formbook

Executable exe 87f10102a623e0a9e8f37e044736a264c8948c38685ff5d55750662010e09c5a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2721539/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/457262/

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