MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c0b433e9f4a2438b5647e9e2e236747cc55e931e46da8e52531b1c70786467d2. 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 2 File information Comments
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SHA256 hash: c0b433e9f4a2438b5647e9e2e236747cc55e931e46da8e52531b1c70786467d2
SHA3-384 hash: 96a3bf681a6d13963050954a6f9a9234d7826fa5a4012626bcc56d560f77ce30132f3f8f1d566df8c9d96ac9f26c5334
SHA1 hash: c859ce590024b4197b377c603ab5c33148b7d3cd
MD5 hash: 73ee2d068702aa824f4ddfb381ce2700
humanhash: december-single-green-mississippi
File name:73ee2d068702aa824f4ddfb381ce2700.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:807'936 bytes
First seen:2022-09-22 10:40:37 UTC
Last seen:Never
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:fWG5weqcK146b5SCdnFXc9+8xOiLX6ZimKtkwzM9JoeON:upBy6b5VFM9VsiLbmKtkwzM9Joh
TLSH T15905CF331AFA4B07D120A7F885D0D2B197ED9C11E467C3979EC98CDFB09AB658660723
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 ce9c9496e4949c9c (73 x AgentTesla, 51 x SnakeKeylogger, 30 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
285
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
73ee2d068702aa824f4ddfb381ce2700.exe
Verdict:
Suspicious activity
Analysis date:
2022-09-22 10:47:37 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/68b1d433-1a54-433c-979e-f96a6a2271a3

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/312326/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/632c3c2112db32f02467c57e/reports/82f9efe8-c723-444d-8c3f-3f2dcf306eeb/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/aa9d084b-bb88-4862-8deb-2d84a1f96cd6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1075195
Signature
.NET source code contains potential unpacker
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 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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 707737 Sample: bluV5fZYXy.exe Startdate: 22/09/2022 Architecture: WINDOWS Score: 100 29 www.asociacionalopeciamadrid.com 2->29 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 7 other signatures 2->47 10 bluV5fZYXy.exe 3 2->10         started        signatures3 process4 file5 27 C:\Users\user\AppData\...\bluV5fZYXy.exe.log, ASCII 10->27 dropped 49 Tries to detect virtualization through RDTSC time measurements 10->49 14 bluV5fZYXy.exe 10->14         started        signatures6 process7 signatures8 51 Modifies the context of a thread in another process (thread injection) 14->51 53 Maps a DLL or memory area into another process 14->53 55 Sample uses process hollowing technique 14->55 57 Queues an APC in another process (thread injection) 14->57 17 wlanext.exe 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 33 Modifies the context of a thread in another process (thread injection) 17->33 35 Maps a DLL or memory area into another process 17->35 37 Tries to detect virtualization through RDTSC time measurements 17->37 23 cmd.exe 1 17->23         started        31 www.asociacionalopeciamadrid.com 217.160.0.234, 49701, 80 ONEANDONE-ASBrauerstrasse48DE Germany 20->31 39 System process connects to network (likely due to code injection or exploit) 20->39 signatures11 process12 process13 25 conhost.exe 23->25         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c0b433e9f4a2438b5647e9e2e236747cc55e931e46da8e52531b1c70786467d2/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2022-09-21 22:58:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
19 of 39 (48.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yc2dh2puujbywvsh5hroentuptcv5ey6i3ni4ustdmoha6dem7ja._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ag94 rat spyware stealer trojan
Link:
https://tria.ge/reports/220922-mq4kaafaap/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/20cd4227-34fc-4273-a251-db6aaf173cf7
Unpacked files
SH256 hash:
2b70a727b76b6d99fb6347896507058fe984c34a5ed2df9e69a145016e0df0a1
MD5 hash:
faae1a1d5356fcf16bb324b2f9636ec6
SHA1 hash:
4c3ea9f966e3b399eb28e06f4e52a4630b9f0fcf
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/934b41d0-4031-484f-b92f-3c6d9f73e852/
Parent samples :
9c06bd5e1e9f92ea449869770a41d697dc242e134fc8c72447c1b730301fa418
7570348e9f9c0cbc989a61d195fd847499d64f8c74404f27a5eafe94274bd4d5
8ba4e909de453a9a2417a992da877b8d809c89a675618e574062d7cef6f18b1d
a5fce9acd8aef328e8a659ee64a13cbd13fe0fd813eb7a02cf5a1f2e23d64597
ca3afdd3df6970f8026481a1d7800d86ba9852aa6a12325330a91f05aa60fb32
c0b433e9f4a2438b5647e9e2e236747cc55e931e46da8e52531b1c70786467d2
542e656f422a4cb0c3dd3aab2f0704ffa3d8f8fcbe4be5e5974bca08f896b8d3
SH256 hash:
a051905a386abdf7c4e91d77b6bcebac6bb36c8c4e3b832ab15bdb9103fcc053
MD5 hash:
c76c71bbb2219b73a8ee4ec83c399aa5
SHA1 hash:
a2fd8f2e94e1b5b5984bebcab678678c5f49ae3c
Link:
https://www.unpac.me/results/934b41d0-4031-484f-b92f-3c6d9f73e852/
SH256 hash:
2470b39032f6182252039c88199016566b0de30c6aa02163a143427afedd12af
MD5 hash:
c3a1924684ca30ed22234ce1d9111dfc
SHA1 hash:
7347706241422758c06440fd6044ae4e042b456b
Link:
https://www.unpac.me/results/934b41d0-4031-484f-b92f-3c6d9f73e852/
SH256 hash:
d2d86036acdbb040ec93d0a19bcbba37e3eedc11b9c9fb78aee8aaffa81c2631
MD5 hash:
ea3e7ebdfadb285a4a32f8b3603fa38c
SHA1 hash:
4d2179ee20fe1e9346940f2bcefa2462fbe224aa
Link:
https://www.unpac.me/results/934b41d0-4031-484f-b92f-3c6d9f73e852/
SH256 hash:
e20ec8f3c957bcb6a194ef688bae8af2015cfffb20e7baf8b2114d7b70ade4ee
MD5 hash:
35cb29046968faca7f3f3b4463449b6c
SHA1 hash:
088c8c30ec1bece0a4b5bbfe3982b073f8b95598
Link:
https://www.unpac.me/results/934b41d0-4031-484f-b92f-3c6d9f73e852/
SH256 hash:
c0b433e9f4a2438b5647e9e2e236747cc55e931e46da8e52531b1c70786467d2
MD5 hash:
73ee2d068702aa824f4ddfb381ce2700
SHA1 hash:
c859ce590024b4197b377c603ab5c33148b7d3cd
Link:
https://www.unpac.me/results/934b41d0-4031-484f-b92f-3c6d9f73e852/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c0b433e9f4a2/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/c0b433e9f4a2438b5647e9e2e236747cc55e931e46da8e52531b1c70786467d2

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
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 c0b433e9f4a2438b5647e9e2e236747cc55e931e46da8e52531b1c70786467d2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2285107/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/312326/

Comments