MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77a0d2b3cf7736f6ba6798b004ce89ce2cbbd049a8eaef6bec53cc854b4e79c9. 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: 16


Intelligence 16 IOCs YARA 5 File information Comments
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SHA256 hash: 77a0d2b3cf7736f6ba6798b004ce89ce2cbbd049a8eaef6bec53cc854b4e79c9
SHA3-384 hash: 5ad94c66831a88cf62fadea5291b28e28e012e7b22ccede27f00f7af8cc5f145d9d8738e1608ca181634c9d55bf19924
SHA1 hash: 42b4b9189cb5d08ba305b275bb67db9a5ff21f51
MD5 hash: dfe3b8cb39210af2ed9b38498cd13902
humanhash: solar-leopard-six-fifteen
File name:T39209.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:552'960 bytes
First seen:2021-11-02 22:56:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:p78H13YXCTlNLP9CanC42YSe5lEWUu2ysVPxwLke:kYyTPLVCanCzhyGHysJKLke
Threatray 10'963 similar samples on MalwareBazaar
TLSH T114C4AE26A37C6F43D93463FC84217018ABB06621BC97D74D9FC527EE8A327B46D60687
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
143
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
T39209.exe
Verdict:
Malicious activity
Analysis date:
2021-11-02 23:00:36 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/bb8220b3-aa74-4c08-a750-3bb327b69b52

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/201584/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.47300229.15364.UNOFFICIAL
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SecuriteInfo.com.Trojan.Inject4.18180-1.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit formbook obfuscated packed
Link:
https://www.filescan.io/uploads/6181c2401c62c356607fc595/reports/bf758064-55aa-48e6-bf26-28bc01181d33/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/3038d796-b5ac-431c-853b-048783b3360a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/881782
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for domain / URL
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
Self deletion via cmd delete
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
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 514212 Sample: T39209.exe Startdate: 02/11/2021 Architecture: WINDOWS Score: 100 36 Multi AV Scanner detection for domain / URL 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 6 other signatures 2->42 10 T39209.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\T39209.exe.log, ASCII 10->28 dropped 58 Tries to detect virtualization through RDTSC time measurements 10->58 60 Injects a PE file into a foreign processes 10->60 14 T39209.exe 10->14         started        signatures5 process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.everythingsamsung.com 103.224.212.221, 49786, 80 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 17->30 32 tokomodern.xyz 103.253.212.113, 49785, 80 RUMAHWEB-AS-IDRumahwebIndonesiaCVID Indonesia 17->32 34 11 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 48 Uses netsh to modify the Windows network and firewall settings 17->48 21 netsh.exe 17->21         started        signatures10 process11 signatures12 50 Self deletion via cmd delete 21->50 52 Modifies the context of a thread in another process (thread injection) 21->52 54 Maps a DLL or memory area into another process 21->54 56 Tries to detect virtualization through RDTSC time measurements 21->56 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/77a0d2b3cf7736f6ba6798b004ce89ce2cbbd049a8eaef6bec53cc854b4e79c9/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-01 14:34:10 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=o6qnfm6po43pnothtcyajtujzywlxucjvdvo627mkpgiks2opheq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
5c6bb4be3e5abfc077f779645b07502ad3f9357fa3c486db79d0a2fb4f470527
Formbook
99889ef9126eddb7fee40e181c9832c734f8cef74736e2c577438300b468751c
Formbook
bec65782844355875f88723419b44dc543ba07b83c8a339036f79e39364493c6
Formbook
e6d987f72ba6218615e53b91de3d7229e3cc0da6768fd3bdbd758dfb7af4a990
Formbook
f6744dd0f12c44cc62ab5c2b58e0c2877d3935d8e1205f39bc540e3a58a88bc1
Formbook
+ 10'953 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:gnui loader rat
Link:
https://tria.ge/reports/211102-2w85aacgc2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.hottorchlighter.com/gnui/
Unpacked files
SH256 hash:
0ccd51e17f14eb3f2701184b7e4f76154232e8e0d6c24fa72df238cfe83ca57f
MD5 hash:
b89d0c58121e6c27613082b97e102620
SHA1 hash:
88f20e8a8935e20d22d03ed837270a2be65eb185
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/7264e69a-db3f-473c-a2d8-4484cdf4b088/
Parent samples :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 hash:
7ec7c47de5927351c7035f8657a2dd91c42fd6ed6e4da309e34b87ef0b0ba785
MD5 hash:
171a2669225911b41301096cd9dcf19f
SHA1 hash:
dc25f1f69faec5174e489a0d1a18cf14cf7fd1b5
Link:
https://www.unpac.me/results/7264e69a-db3f-473c-a2d8-4484cdf4b088/
SH256 hash:
71e2cc746421660d5d68910d1dea1558d256047ea800f8dd6491c23f06dc1c94
MD5 hash:
8f10fdfd972a88a096681c05fa8642e5
SHA1 hash:
aff88a277249afd32fa12451d198f7b2a966db55
Link:
https://www.unpac.me/results/7264e69a-db3f-473c-a2d8-4484cdf4b088/
SH256 hash:
77a0d2b3cf7736f6ba6798b004ce89ce2cbbd049a8eaef6bec53cc854b4e79c9
MD5 hash:
dfe3b8cb39210af2ed9b38498cd13902
SHA1 hash:
42b4b9189cb5d08ba305b275bb67db9a5ff21f51
Link:
https://www.unpac.me/results/7264e69a-db3f-473c-a2d8-4484cdf4b088/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/77a0d2b3cf77/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.95
Link:
https://yomi.yoroi.company/submissions/77a0d2b3cf7736f6ba6798b004ce89ce2cbbd049a8eaef6bec53cc854b4e79c9

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
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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.

Malspam

Formbook

Executable exe 77a0d2b3cf7736f6ba6798b004ce89ce2cbbd049a8eaef6bec53cc854b4e79c9

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/201584/

Comments