MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a9a2a77700ec22944b66a398f0642e59bfdf0a64d83aae774eeabf8ccc03c78. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a9a2a77700ec22944b66a398f0642e59bfdf0a64d83aae774eeabf8ccc03c78
SHA3-384 hash: 0f5fb70c8512606995f872c754e13f61c555e116683b2bafa8c2d1283d80fc77c212dff3a7ad1d6ccd25af7283e42677
SHA1 hash: bb9016e6fde1807bb0d5e8a26a95f24d922dcabe
MD5 hash: 463345f74eb161e064aa88285e9f9b1a
humanhash: blue-mobile-princess-maine
File name:SecuriteInfo.com.Trojan.PackedNET.1268.7724.2779
Download: download sample
Signature Formbook
Create hunting rule
File size:487'904 bytes
First seen:2022-09-28 10:28:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'754 x AgentTesla, 19'660 x Formbook, 12'251 x SnakeKeylogger)
ssdeep 6144:22IzsC+XAsC1lUKcHOt2s+ZtchIJhi5UOD10oe85a+:ksC+XAh1lULOtt+Ztc+J2aoeu
Threatray 403 similar samples on MalwareBazaar
TLSH T14EA41674A0B16ACDE896CEB39EA4E909FFE71D419A42821FD03535F64237B85C6440FE
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% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 10808a8c8c8a8010 (77 x Formbook, 51 x AgentTesla, 44 x RemcosRAT)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
330
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/314310/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1268.7724.2779.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/633421b8d089a0c15dd28d9c/reports/bb8b8cab-1b13-4a33-9de3-104e956370bd/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9e0239f0-37b4-48aa-9971-eea95e929665
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1079132
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
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)
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 711689 Sample: SecuriteInfo.com.Trojan.Pac... Startdate: 28/09/2022 Architecture: WINDOWS Score: 100 34 Snort IDS alert for network traffic 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 3 other signatures 2->40 8 SecuriteInfo.com.Trojan.PackedNET.1268.7724.2779.exe 1 2->8         started        process3 file4 24 SecuriteInfo.com.T...8.7724.2779.exe.log, CSV 8->24 dropped 50 Writes to foreign memory regions 8->50 52 Allocates memory in foreign processes 8->52 54 Injects a PE file into a foreign processes 8->54 12 RegSvcs.exe 8->12         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 12->56 58 Maps a DLL or memory area into another process 12->58 60 Sample uses process hollowing technique 12->60 62 Queues an APC in another process (thread injection) 12->62 15 explorer.exe 12->15 injected process8 dnsIp9 26 libercredi.com 162.241.62.151, 49699, 80 UNIFIEDLAYER-AS-1US United States 15->26 28 www.mymcdsteam.com 81.17.29.146, 49703, 49704, 49705 PLI-ASCH Switzerland 15->28 30 5 other IPs or domains 15->30 32 System process connects to network (likely due to code injection or exploit) 15->32 19 systray.exe 13 15->19         started        22 autoconv.exe 15->22         started        signatures10 process11 signatures12 42 Tries to steal Mail credentials (via file / registry access) 19->42 44 Tries to harvest and steal browser information (history, passwords, etc) 19->44 46 Modifies the context of a thread in another process (thread injection) 19->46 48 Maps a DLL or memory area into another process 19->48
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/4a9a2a77700ec22944b66a398f0642e59bfdf0a64d83aae774eeabf8ccc03c78/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2022-09-28 07:14:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
14 of 26 (53.85%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jkncu53qb3bcsrfwni4y6bsc4wn734fgjwb2vz3u52v7rtgahr4a._file
Verdict:
malicious
Similar samples:
089e22b0800e63398322f535240d8043b8d7e4a561245718ed5bf88fbb22e799
Formbook
0d179277dc17521d3f9668838ddc6cfe818f72ef5691c123443b9442295d90ff
Formbook
27cb5cb27c8f29f4fcc7728b02a5a6f0f94f84ec1d17ab9284bfdb2e6b42ba98
Formbook
364f5cfc6c99c0b408090af7528505844b1b33853c5ea7930420d8f11b4ca011
Formbook
3c3bee00c300584717e1c307e690d05ab1c6c98428d83ca0d4285fe24a9e1015
Formbook
4a7ff610e707aec96fd17933cd54dbe672829c85ea4fdad33d37a9e421b500a8
Formbook
8776ab0754e874c4850f80bd4b455ee1f55c3be6e44d307edfd3b1efa58d257b
Formbook
c22d25107e48962b162c935a712240c0a4486b38891855f0e53d5eb972406782
Formbook
dd7002a597142a426c7710e84485e6047450cbcb58e44cbbec73c20b0ee50771
Formbook
fe3e525b56aaa99c9716eb9a4b7a1884e8b1f35d38388268f627485532f25d60
Formbook
+ 393 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:nrln rat spyware stealer trojan
Link:
https://tria.ge/reports/220928-mhn5maffa7/
Behaviour
Enumerates system info in registry
Gathers network information
Modifies Internet Explorer settings
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
Loads dropped DLL
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/6069e94b-791a-4c0a-b2dc-e0065d7b029f
Unpacked files
SH256 hash:
5fd1101fd4609bc02587075cefba65f58571615119186762cbdbb5a44ea5fb22
MD5 hash:
01080f1e20e4b55f396398cd1f88d901
SHA1 hash:
22958d41e3ffcfe52737c67e274603ea609f6325
Link:
https://www.unpac.me/results/770b1d01-d762-4560-95ec-bc2323e8ec59/
SH256 hash:
9d1e0209e5ee24f53a95089d0028efa51dcc767b79a3fa29f331a85107a85bc7
MD5 hash:
1bb2a3228e920dbe6df3383f006f830a
SHA1 hash:
45cab413c6454d92458dc9d13d1f04707980c993
Link:
https://www.unpac.me/results/770b1d01-d762-4560-95ec-bc2323e8ec59/
SH256 hash:
4a9a2a77700ec22944b66a398f0642e59bfdf0a64d83aae774eeabf8ccc03c78
MD5 hash:
463345f74eb161e064aa88285e9f9b1a
SHA1 hash:
bb9016e6fde1807bb0d5e8a26a95f24d922dcabe
Link:
https://www.unpac.me/results/770b1d01-d762-4560-95ec-bc2323e8ec59/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4a9a2a77700e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/4a9a2a77700ec22944b66a398f0642e59bfdf0a64d83aae774eeabf8ccc03c78

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:BAZT_B5_NOCEXInvalidStream
Create hunting rule
Rule name:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:NETDIC208_NOCEX_NOREACTOR
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/314310/

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