MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b2fe76bd1cad45feafc7bbf7301e8f48018aa27504fbb88af5d7030b6d0d242. 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: 1b2fe76bd1cad45feafc7bbf7301e8f48018aa27504fbb88af5d7030b6d0d242
SHA3-384 hash: c258e382a5d9b5943b5676742a3e9f5104a383fb577746ee7ba3367c8cdaf2bf2166f683a7248c417e46c89b8980661b
SHA1 hash: ea69faf9bb6799bb52f5e4147e9b0169bf5ff8e6
MD5 hash: 3c25f4175e52ec2437bf577e0e7dd831
humanhash: cola-romeo-echo-fillet
File name:3c25f4175e52ec2437bf577e0e7dd831.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:831'488 bytes
First seen:2022-11-02 14:54:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:/E3vEyTYtnUefDcZusRwq2+YJY9SdkC8z6Ib8RyeSUue9QFDm61skW:qE6YVwlF2+YJESf8mIvL1eKQ6OkW
TLSH T14E05D01E0AE9061AC6AA39B856E4E7FBA7DDAC40F417C35717C99D8FB847334C610398
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
249
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
PO-0095113.doc
Verdict:
Malicious activity
Analysis date:
2022-11-02 14:51:04 UTC
Tags:
exploit cve-2017-11882 loader formbook trojan stealer
Link:
https://app.any.run/tasks/77d96ca5-f778-459d-8cd8-fb31c50876b1

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/327242/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Launching a process
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/636284cb736e9d884f0ddf80/reports/3a245422-9b98-4c14-8317-8ba8757f1a54/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a583829a-0381-4d45-a3bc-338b3bd1f45a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1103402
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in 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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 signatures2 2 Behavior Graph ID: 736065 Sample: IRTcf2kNmU.exe Startdate: 02/11/2022 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for URL or domain 2->40 42 7 other signatures 2->42 10 IRTcf2kNmU.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\IRTcf2kNmU.exe.log, ASCII 10->28 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 56 Injects a PE file into a foreign processes 10->56 14 IRTcf2kNmU.exe 10->14         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.tron268.one 188.114.97.3, 49685, 80 CLOUDFLARENETUS European Union 17->30 32 www.tuv39.site 17->32 34 5 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 46 Performs DNS queries to domains with low reputation 17->46 21 rundll32.exe 17->21         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1b2fe76bd1cad45feafc7bbf7301e8f48018aa27504fbb88af5d7030b6d0d242/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-11-02 11:34:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
17 of 40 (42.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dmx6o26rzlkf72x4po7xgapi6sabrkrhkbh3xcfplvydbnwq2jba._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ey84 rat spyware stealer trojan
Link:
https://tria.ge/reports/221102-saf2yaccan/
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/58e6d9c8-4845-4f55-9325-1074efe368bd
Unpacked files
SH256 hash:
a5be8644a807add461af3241e0c5ec54cdcd738640754e891054e41d04dd31c3
MD5 hash:
ca4ce7e693360f4cd62ff8cccd27658b
SHA1 hash:
edc8f45ab9affeb8f5f76a914dd7fd281ce892e8
Detections:
FormBook
Create hunting rule
win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/e0b96793-bd2d-4b42-8514-752dd42352c1/
Parent samples :
1b2fe76bd1cad45feafc7bbf7301e8f48018aa27504fbb88af5d7030b6d0d242
c48d62d8d6f694ec85fb1c5661b0d09ade998b6ae765a47d28c3b8cf5849bf87
48a1348edeb4143fb0a547c959a4bcba1af8b2eeaf99a0264f46d1b747d106d4
74dbd2fba0d3539db525ced5dcb88433d50a6a778d33531513135b8af6b078c6
204c067d41b8b87286959a3a533e64f75a89d87d23e3c7d19c011cd1f6ba116c
35bf4f389e5d0dad4bcc9f0d5992038737f1031a9d590535b9d371e7b072dace
cf8e08686f8a6d0db148bb8e5185cd5ccd8a6a9203ac5603ec7a125e483dd989
SH256 hash:
aa08c9fcdf5913a834279d6a114e813744cd612451efa84fdf8f4c40975ec2ba
MD5 hash:
6ab4961f2d2754598fd60e6927fb06c2
SHA1 hash:
fd4aa730f713603be18e49d513a2e1118003d410
Link:
https://www.unpac.me/results/e0b96793-bd2d-4b42-8514-752dd42352c1/
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
Link:
https://www.unpac.me/results/e0b96793-bd2d-4b42-8514-752dd42352c1/
SH256 hash:
8354a7ad0499febdd288542828ad0355dcb7054c0c518266208e571c5122b0c6
MD5 hash:
6bfc7ce9ec7891d9d8494454332099b5
SHA1 hash:
34fc8cebba035e2cc6d27d636f9655949080bf8e
Link:
https://www.unpac.me/results/e0b96793-bd2d-4b42-8514-752dd42352c1/
SH256 hash:
1f5d9e9e96adbbf190e3b938f75021db9ecf109890e9db6291c9b9cbe17b7588
MD5 hash:
c5232cc98d188eb61349dac50fb7d4e3
SHA1 hash:
1192e21e1499ab58916a84ca6e88582016e59fe9
Link:
https://www.unpac.me/results/e0b96793-bd2d-4b42-8514-752dd42352c1/
SH256 hash:
1b2fe76bd1cad45feafc7bbf7301e8f48018aa27504fbb88af5d7030b6d0d242
MD5 hash:
3c25f4175e52ec2437bf577e0e7dd831
SHA1 hash:
ea69faf9bb6799bb52f5e4147e9b0169bf5ff8e6
Link:
https://www.unpac.me/results/e0b96793-bd2d-4b42-8514-752dd42352c1/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1b2fe76bd1ca/report/overview.html
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/1b2fe76bd1cad45feafc7bbf7301e8f48018aa27504fbb88af5d7030b6d0d242

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 1b2fe76bd1cad45feafc7bbf7301e8f48018aa27504fbb88af5d7030b6d0d242

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/327242/
  
URLhaus
https://urlhaus.abuse.ch/url/2355208/
  
Delivery method
Distributed via web download

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