MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43933efdb6406f03c3505c5bc398a841cb55ffbdf254cdcb6bd5cac87320a1cd. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
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SHA256 hash: 43933efdb6406f03c3505c5bc398a841cb55ffbdf254cdcb6bd5cac87320a1cd
SHA3-384 hash: 300c8f6fda35b60b37d1330991f70618374e748aea4ecc1a58438c5a26bca73a5880330608e44399c2b8ac0a74b87ef9
SHA1 hash: 6405d573b25221cbc6cb09116ae060f42cde90ea
MD5 hash: ec1420c4b5debf3a6d97a1618b436cf0
humanhash: michigan-chicken-london-march
File name:ec1420c4b5debf3a6d97a1618b436cf0.exe
Download: download sample
Signature Formbook
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File size:518'144 bytes
First seen:2022-04-06 16:40:05 UTC
Last seen:2022-04-06 17:47:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:GCOVGXaL4UDKo9VwRSp6yxGNEwUrxc/Q8wWKtC5bX0Rxt+1OF:ERkUDDuIp66zmSWKkRX0Rxt
Threatray 14'693 similar samples on MalwareBazaar
TLSH T101B412451BEC6712D8FEDBF5BA3C648007B6352F68A1E68C8EC174DB2C627909542F87
File icon (PE):PE icon
dhash icon f8e4f239d9b8f8e0 (21 x SnakeKeylogger, 20 x AgentTesla, 11 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
241
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/261460/
Detection(s):
SecuriteInfo.com.Trojan.Siggen17.35002.19716.1680.UNOFFICIAL
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Win.Dropper.LokiBot-9943279-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/624dc26baa7e43c6a6c36d3e/reports/531a374f-4e98-4d78-8d7f-dc48ce406825/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5e82da28-ef4e-4728-a8a7-4ea002c6a2f1
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/971682
Signature
.NET source code contains potential unpacker
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 604169 Sample: lxnew7ahpc.exe Startdate: 06/04/2022 Architecture: WINDOWS Score: 100 32 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->32 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 8 other signatures 2->38 10 lxnew7ahpc.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\lxnew7ahpc.exe.log, ASCII 10->28 dropped 50 Tries to detect virtualization through RDTSC time measurements 10->50 14 lxnew7ahpc.exe 10->14         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 14->52 54 Maps a DLL or memory area into another process 14->54 56 Sample uses process hollowing technique 14->56 58 Queues an APC in another process (thread injection) 14->58 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.freepornompg.com 46.8.8.100, 49785, 80 GRANSYGransysrohttpgransycomCZ Russian Federation 17->30 40 System process connects to network (likely due to code injection or exploit) 17->40 21 systray.exe 17->21         started        signatures10 process11 signatures12 42 Self deletion via cmd delete 21->42 44 Modifies the context of a thread in another process (thread injection) 21->44 46 Maps a DLL or memory area into another process 21->46 48 Tries to detect virtualization through RDTSC time measurements 21->48 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/43933efdb6406f03c3505c5bc398a841cb55ffbdf254cdcb6bd5cac87320a1cd/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2022-04-06 06:52:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
17 of 26 (65.38%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
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Similar samples:
0d913321824b24f168daf6da5e888c9700fb5ed5e3bc06bd24be670c1a10fcb7
Formbook
0fae331eb46ca1a2971d2d03cc3558e51f73c36d14b70dd731ce44f799c723ef
Formbook
2f769789848c3e7e7492ad889d72f0087633418aa8368fcbfa63bf2dc31bfd1a
Formbook
6d1ae3278059d592ae7c4426df9456553b8abfbc3bd90ce0f8d1792e94ae95c2
Formbook
8392408d685d10ddf024a7e4f47976e03a00fd787bd4ee0932766c4b9b278bc0
Formbook
8cacd20da785153237d5602e9fb15f7d18343b16e37dfbbf36b549e89a93378f
Formbook
c652919676cc6f3ea808c6e1023de343d27ed8f72f4f1b94523c4ecfb09bf223
Formbook
c693f2f43531ac27c22d4abe354cd66fa4014a60d1df090b22dfe5a76a97c4d7
Formbook
d727b63c6bcf81ea3c6a345f8435ad103f37c11c1b2cc89f9fee1f7253a26f9f
Formbook
da9e890626946b96039a20cc107a0f7f0bc13440d9ede74799b6f9a2514e3759
Formbook
+ 14'683 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:g02e rat spyware stealer trojan
Link:
https://tria.ge/reports/220406-t66g5scaep/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Unpacked files
SH256 hash:
860b474a3394c7d83ef87699342b8869853331bb50e8c0d518e63666c349e094
MD5 hash:
4753501bad1bea0a3f178296068e6a65
SHA1 hash:
dd86ef8caabd28157cc86a3fee24a154dccc8ae2
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/8d994244-90c3-44ef-8441-fe9a36ecc50b/
Parent samples :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 hash:
fe58122a2dc9f6b7c57eb945796affbcaa214b940cc31ea78bb3a93ec99b78bd
MD5 hash:
d4be86e94d2483566e3b788be1cf4658
SHA1 hash:
9e859c78492536bbcb13ce9a1efdebf5b73a6316
Link:
https://www.unpac.me/results/8d994244-90c3-44ef-8441-fe9a36ecc50b/
SH256 hash:
e880000f2c387bbb2901bc4cebac9440aea5c608513975f60da538de33cf8ccc
MD5 hash:
5c0a9ea77e01f6eef6ae7e8833ddf405
SHA1 hash:
88bda04c4407e785fa65535368de104f583cac4f
Link:
https://www.unpac.me/results/8d994244-90c3-44ef-8441-fe9a36ecc50b/
SH256 hash:
6c719242522791e8c5c8718baecfd471aa8439dbb051fbdcfb3caa7f5d9be0d7
MD5 hash:
1e4ab284fe1203645ec35fb92f31dac3
SHA1 hash:
643154e0e189ac67e198a3e423322ba0f02d1dd7
Link:
https://www.unpac.me/results/8d994244-90c3-44ef-8441-fe9a36ecc50b/
SH256 hash:
43933efdb6406f03c3505c5bc398a841cb55ffbdf254cdcb6bd5cac87320a1cd
MD5 hash:
ec1420c4b5debf3a6d97a1618b436cf0
SHA1 hash:
6405d573b25221cbc6cb09116ae060f42cde90ea
Link:
https://www.unpac.me/results/8d994244-90c3-44ef-8441-fe9a36ecc50b/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Skystars_Malware_Imphash
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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 43933efdb6406f03c3505c5bc398a841cb55ffbdf254cdcb6bd5cac87320a1cd

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2096984/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/261460/

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