MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42173f59707de5929c3bc6cd37d5e0dc55d990bce2c29aa6deac6e86c3eec250. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments 1
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SHA256 hash: 42173f59707de5929c3bc6cd37d5e0dc55d990bce2c29aa6deac6e86c3eec250
SHA3-384 hash: d9fb5bbb10216152a6615cbf57dde544f518a74e814aea32f7cd1d90964cacf79e924bcdd3a9523526508fbee5699865
SHA1 hash: 984a18333bcd137d00a2223a10b83946f0b3949d
MD5 hash: 075bd1e3e3e0c01794ee6a84be2c585a
humanhash: floor-king-romeo-charlie
File name:075bd1e3e3e0c01794ee6a84be2c585a
Download: download sample
Signature Formbook
Create hunting rule
File size:739'840 bytes
First seen:2021-11-25 19:21:26 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:QBzcmhiTyq+0tWTpvmEwyd2NR5SR72R6/NHJbBMa59mO/1flaMMdrixBFmRq:QBomhi+2WYEFdqu5NHJbBMa5Mdri1Wq
Threatray 11'787 similar samples on MalwareBazaar
TLSH T1DBF4F12132B85D8BC7BE07FAA420545057F6B717A16ED7EC8D84B2ED59E2F014B02B27
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
136
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5aad2b6635b3069402aaf6ff389bea64
Verdict:
Malicious activity
Analysis date:
2021-11-25 16:26:26 UTC
Tags:
opendir exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/70fbac23-82bd-41ea-8214-ca5a5bd3366d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creating a window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
67%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/619fe25df36138de3f3d0c56/reports/985c59ed-1697-481c-b731-fb4e8e64c170/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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/110ab3e9-052f-493d-8277-97a64ebe9b6b
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/896341
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)
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
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 528819 Sample: 9IikwILD75 Startdate: 25/11/2021 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 7 other signatures 2->42 10 9IikwILD75.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\9IikwILD75.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 9IikwILD75.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.jukeboxjason.com 17->30 32 www.cozsweeps.com 17->32 34 cozsweeps.com 34.102.136.180, 49788, 80 GOOGLEUS United States 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 cmmon32.exe 17->21         started        signatures10 process11 signatures12 46 Self deletion via cmd delete 21->46 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/42173f59707de5929c3bc6cd37d5e0dc55d990bce2c29aa6deac6e86c3eec250/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-25 19:07:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
67
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
259c36b591f16a680dcfdad4bb69e5546c21a1b4a591403578b1f079b236c510
Formbook
4bde2d0abed748c6fb8620ab890cbb09fa5749c4ef749e8cd5c6c7dd40cfd37b
Formbook
60ff626adc6a02e50f060f456b0b7f8a11577e923624b3fa8c009d758892439b
Formbook
680993e1220c8d918f192ae23c5c01b6357c58ad68b7cc59fa122c09b7b85cdd
Formbook
69169d89d7b806d4e42f45dc20447e2d8657cb7f5425b08fa35d6cdd1f303be4
Formbook
8165ac99e7dbfb2059308aaa1105ede0f191bb846d14dfd7ed709c3bcfb88510
Formbook
8f0a372287ebba19a62630d683fc3292df06a10faeaed2ac68cde0c5b2374844
Formbook
b52af14eb676f40ba504c6c97cc06a75fc266a4abb3da6feb923701bbd8d0f51
Formbook
c98eac88f8f4243d7303b806cb58e0a89e33270cb4b33457c91938a2b2746238
Formbook
e2682ee08233df5afc90d9295165ffed0373e4f34278d99d5a30622c2577639b
Formbook
+ 11'777 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:9gr5 rat spyware stealer trojan
Link:
https://tria.ge/reports/211125-x28ngsbfe4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.cuteprofessionalscrubs.com/9gr5/
Unpacked files
SH256 hash:
f6639a3b21a09ca5e9e43e10f8ac7f822956232806805252096f03f68bc9815c
MD5 hash:
aa334e922c53c5cba0b43c342ac13b14
SHA1 hash:
68109327b5e98174293bb348dfea6a088cbd5d2f
Link:
https://www.unpac.me/results/60415ab2-6874-4bad-b83a-3004254a488a/
SH256 hash:
af7e3fdf49ee5b5bcb106e80fbc4706e3b7942da643f33ea092103533ada3cd8
MD5 hash:
836f46a4408bc4060e0fe6892a241991
SHA1 hash:
8e7930d1591c8a844bdf626d3c0d0866db805251
Link:
https://www.unpac.me/results/60415ab2-6874-4bad-b83a-3004254a488a/
SH256 hash:
20b043001e2a32b70de6d177a955979c50e7e5024abba2dd94e4a1d542f78671
MD5 hash:
fefca1da5f8b661869b93c205c087d21
SHA1 hash:
55451475d933e516b7666c7d73432b35a87b5eeb
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/60415ab2-6874-4bad-b83a-3004254a488a/
Parent samples :
4bde2d0abed748c6fb8620ab890cbb09fa5749c4ef749e8cd5c6c7dd40cfd37b
60ff626adc6a02e50f060f456b0b7f8a11577e923624b3fa8c009d758892439b
69169d89d7b806d4e42f45dc20447e2d8657cb7f5425b08fa35d6cdd1f303be4
259c36b591f16a680dcfdad4bb69e5546c21a1b4a591403578b1f079b236c510
42173f59707de5929c3bc6cd37d5e0dc55d990bce2c29aa6deac6e86c3eec250
1cbfaa8a18eb1b6aca5e3e487fbf74b278473d8be3caf45242a67ff6a1f58856
SH256 hash:
42173f59707de5929c3bc6cd37d5e0dc55d990bce2c29aa6deac6e86c3eec250
MD5 hash:
075bd1e3e3e0c01794ee6a84be2c585a
SHA1 hash:
984a18333bcd137d00a2223a10b83946f0b3949d
Link:
https://www.unpac.me/results/60415ab2-6874-4bad-b83a-3004254a488a/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/42173f59707d/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/42173f59707de5929c3bc6cd37d5e0dc55d990bce2c29aa6deac6e86c3eec250

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
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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.

Web download

Formbook

Executable exe 42173f59707de5929c3bc6cd37d5e0dc55d990bce2c29aa6deac6e86c3eec250

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1817271/
Cape
Cape
https://www.capesandbox.com/analysis/209490/

Comments


Avatar
zbet commented on 2021-11-25 19:21:27 UTC

url : hxxp://198.46.199.153/70007/vbc.exe