MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6b73ab2cf730e26c8609e57d23e09260d6c74db84f29ae6f786129f7a3b6512b. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6b73ab2cf730e26c8609e57d23e09260d6c74db84f29ae6f786129f7a3b6512b
SHA3-384 hash: 979d994329f72c510023edc1f3dcde09cc7575a2a607ef0780cb53c80c57ec46b37e30fe4c73f00de94f161c3340d6c5
SHA1 hash: 92569595aa0a20d9937bd03525a756dd35059d3b
MD5 hash: 493562fc3240d634f797be4a433d72c7
humanhash: summer-chicken-fifteen-oscar
File name:493562fc3240d634f797be4a433d72c7
Download: download sample
Signature Formbook
Create hunting rule
File size:727'040 bytes
First seen:2023-09-19 10:07:18 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 12288:406gna2iNP1UIkvEbtOgVt3KB6bxxXRZEG/p8fD5mcjtqlg6utz5l96OXaq:XTa1F14ot1aIxxAop+mc0g6MNa
Threatray 2'689 similar samples on MalwareBazaar
TLSH T160F4D08863F87B53F8B77BF69D61621047B6BD2BA921C14E1D8720DAD532B414E90B33
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% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 0c525252c9c4e42b (3 x AgentTesla, 2 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
282
Origin country :
FR FR
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/449639/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Restart of the analyzed sample
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6509730449c6a4ce497c6636/reports/e8802aaf-d8a0-4157-8b14-9da7d173efa4/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/6b73ab2cf730e26c8609e57d23e09260d6c74db84f29ae6f786129f7a3b6512b
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/127b4a03-a772-445f-9876-bd83d56505d2
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1310691
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found 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 domain / URL
Multi AV Scanner detection for submitted file
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1310691 Sample: Vjsl1VvL4Z.exe Startdate: 19/09/2023 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic 2->38 40 Multi AV Scanner detection for domain / URL 2->40 42 Found malware configuration 2->42 44 8 other signatures 2->44 10 Vjsl1VvL4Z.exe 3 2->10         started        process3 signatures4 52 Tries to detect virtualization through RDTSC time measurements 10->52 13 Vjsl1VvL4Z.exe 10->13         started        process5 signatures6 54 Modifies the context of a thread in another process (thread injection) 13->54 56 Maps a DLL or memory area into another process 13->56 58 Sample uses process hollowing technique 13->58 60 Queues an APC in another process (thread injection) 13->60 16 explorer.exe 7 6 13->16 injected process7 dnsIp8 28 www.valeriaestate.com 91.195.240.94, 49731, 80 SEDO-ASDE Germany 16->28 30 www.ypwvj8.top 154.195.192.131, 49728, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Seychelles 16->30 32 17 other IPs or domains 16->32 36 System process connects to network (likely due to code injection or exploit) 16->36 20 cmstp.exe 12 16->20         started        signatures9 process10 dnsIp11 34 www.los3.online 20->34 46 Modifies the context of a thread in another process (thread injection) 20->46 48 Maps a DLL or memory area into another process 20->48 50 Tries to detect virtualization through RDTSC time measurements 20->50 24 cmd.exe 1 20->24         started        signatures12 process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6b73ab2cf730e26c8609e57d23e09260d6c74db84f29ae6f786129f7a3b6512b/
Threat name:
Win32.Trojan.Swotter
Create hunting rule
Status:
Malicious
First seen:
2023-09-19 10:08:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
13 of 23 (56.52%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nnz2wlhxgdrgzbqj4v6shyesmdlmotnyj4u2433ymeu7pi5wkevq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
16bd868c6c2200864825de71892e8802f0f7f243f476dcd38e9d713bb0a5ee44
Formbook
3c37386f3be133776e9754f751b88396a17d0030105646d373e82e8e0a79fe3c
Formbook
4c817012f18358469290ab2d534a7670dbd7769499cfafa327b5f7afca8c3552
Formbook
75d581c7e8d6e54c491ca50b66a5945b2bcb9a75030b52faccb5ef133fe4ffe6
Formbook
946c1319c6a08e50e191cc56cac6895bfac47b2e766901a8714251f40a06bdff
Formbook
9cd1b016ff9416679f96b8047284684816dc8dc5c61d698f2ff69a3d200477ca
Formbook
a2ed07bb61747f46086f07900e698d552f1a36ac21bbeee313894743aeb1276a
Formbook
c250549bfd9382d9489d8a0905c0b8bde28ec07f5af5d8b92e4ec8eb6cc72248
Formbook
e8daa9482a4d8379e8a1d3dea17ccb16746dc786522acfe79da2b833c525a9b6
Formbook
+ 2'679 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ro12 rat spyware stealer trojan
Link:
https://tria.ge/reports/230919-l58bcagc9y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
c84df850ad2ded3c7faf4ae873d699b9a7b4db7d22675df274aafd9b4c02ffc7
MD5 hash:
c0f91ed211168b26c8e239a91f2f7f5c
SHA1 hash:
139ddf41a6fc27e9fb5f7595da7de3235369762b
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/3d26da16-8a82-444c-83a9-ce7eb9dea186/
Parent samples :
75d581c7e8d6e54c491ca50b66a5945b2bcb9a75030b52faccb5ef133fe4ffe6
e8daa9482a4d8379e8a1d3dea17ccb16746dc786522acfe79da2b833c525a9b6
6b73ab2cf730e26c8609e57d23e09260d6c74db84f29ae6f786129f7a3b6512b
4aab06d62b7be6864a2844428af16f335fee3713ef63ebf637540275f40ffd3e
b06fa82f10d2120f00f919b03f578f97a3daa9f670a2bbd01749e3b573fb0315
SH256 hash:
a1f77e3248f66fb92e00c75f5908d67c27afcd2a72693e97a923de23c32ac9f1
MD5 hash:
25b37a0a9541f0c955016c636bb3ce51
SHA1 hash:
e950b78a58c07db219a78816f187ebc67f20a635
Link:
https://www.unpac.me/results/3d26da16-8a82-444c-83a9-ce7eb9dea186/
SH256 hash:
4a8d70ece798fb6955e46bdb4b4813924a3bbcf205e585fd0aef148123a44489
MD5 hash:
3bcd5e9d69da03ebe27b9c2e472d9e8d
SHA1 hash:
aa268bd00ed60a5907b4b2a669ddd21a1b8bb4da
Link:
https://www.unpac.me/results/3d26da16-8a82-444c-83a9-ce7eb9dea186/
SH256 hash:
0630b864e828fff2d66f33ab7d00fad231df4c00fc0bbad313ee0d12ca503198
MD5 hash:
f559a9abbd849eb977d262d597d6e4fd
SHA1 hash:
0a8769b40b026852690c89b913c2812817ef43c8
Link:
https://www.unpac.me/results/3d26da16-8a82-444c-83a9-ce7eb9dea186/
Parent samples :
cef72412a1dd9486bae5f7e606d4330660fba98575ba1c939559ccc83536f41a
81ccf158093718305b3499d0f16d8a82bcad69f2740066daca8d5b5ca9979688
SH256 hash:
6b73ab2cf730e26c8609e57d23e09260d6c74db84f29ae6f786129f7a3b6512b
MD5 hash:
493562fc3240d634f797be4a433d72c7
SHA1 hash:
92569595aa0a20d9937bd03525a756dd35059d3b
Link:
https://www.unpac.me/results/3d26da16-8a82-444c-83a9-ce7eb9dea186/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6b73ab2cf730/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/6b73ab2cf730e26c8609e57d23e09260d6c74db84f29ae6f786129f7a3b6512b

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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 6b73ab2cf730e26c8609e57d23e09260d6c74db84f29ae6f786129f7a3b6512b

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2712485/
  
URLhaus
https://urlhaus.abuse.ch/url/2712476/
Cape
Cape
https://www.capesandbox.com/analysis/449639/

Comments


Avatar
zbet commented on 2023-09-19 10:07:19 UTC

url : hxxp://103.182.16.23/M189T/smss.exe