MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 98555514bbd11ff97bc555c553087b857314f4da0488e2235080651ee71a0f0f. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
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SHA256 hash: 98555514bbd11ff97bc555c553087b857314f4da0488e2235080651ee71a0f0f
SHA3-384 hash: bd69797305300bbee83ad0c1243754b4863e978dcec63367e590382793ed68c66b8bad6e513494b90d517b73044fa770
SHA1 hash: 3b803e0fddb0d2e41258f8f2c1645bc0192b8451
MD5 hash: b740d49b362a4e9b72a84344d634d004
humanhash: ack-minnesota-alpha-green
File name:RFQ48392.exe
Download: download sample
Signature Formbook
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File size:979'968 bytes
First seen:2022-05-10 05:49:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:4LmWDfxt7J0J+k4JObtsqC6THy0BzJGE58FB6X2XGZT/:s2UObZW0BJB8z6J
Threatray 15'426 similar samples on MalwareBazaar
TLSH T151257C40B288EED5E82953B1C835C5F00722BE1AD575D60F29DA7D9F38B33436526E2B
TrID 54.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
23.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.8% (.EXE) Win64 Executable (generic) (10523/12/4)
4.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.3% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d4c4c4d8ccd4f0c4 (63 x Formbook, 23 x AgentTesla, 8 x RemcosRAT)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
237
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
RFQ48392.exe
Verdict:
Malicious activity
Analysis date:
2022-05-10 05:51:07 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/f46c03da-652d-42c4-8062-a747ae840453

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.ArtemisB740D49B362A.31290.17260.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed replace.exe update.exe wacatac
Link:
https://www.filescan.io/uploads/6279fd4736c061db6e5f9810/reports/f1ccd5d7-b084-415b-9c2a-c6e757d873b4/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/fee69ccb-69e5-431c-a2f4-39c485807282
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/990719
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 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: 623215 Sample: RFQ48392.exe Startdate: 10/05/2022 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for URL or domain 2->40 42 8 other signatures 2->42 10 RFQ48392.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\RFQ48392.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 RFQ48392.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.mrkhab.com 3.64.163.50, 49777, 80 AMAZON-02US United States 17->30 32 www.rarewhiskyexchange.online 17->32 34 rarewhiskyexchange.online 34.102.136.180, 49832, 80 GOOGLEUS United States 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 wscript.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:
formbook
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Link:
https://mwdb.cert.pl/sample/98555514bbd11ff97bc555c553087b857314f4da0488e2235080651ee71a0f0f/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
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Status:
Malicious
First seen:
2022-05-10 05:50:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
38
AV detection:
17 of 24 (70.83%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tbkvkff32ep7s66fkxcvgcd3qvzrj5g2aseoei2qqbsr5zy2b4hq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0cd606362bbe747f3d0c0193675ce46ea2920fba28580b784f50a2969bbb0c27
Formbook
1358d88e078f1c59b546256968179bf213928f1e6f4e7afa255681b2cd8f92a2
Formbook
3230e570068c3d5d6d0017a368fd6e5b179eadbfec7a8d5eb9b10308fa22c637
Formbook
5f75a4cd779707129db4deb97e834d4fe3e7d41d576d9a2078b855c790736c74
Formbook
721c03c3cc73dddfcf27e473fc9d1962dd59b3cc7f7b70cdc17d2d6a049aed8e
Formbook
87945ecb2a81ea654a98c72800f03a4202873f30f58212cdec3d6d577be04d4d
Formbook
88eed605657dcc9cc542b4a3850b49e5ee83ffa39120c04669fb9f1d53955c43
Formbook
8c7c6966c40ca10cdb43c9520c24ae932e63429fbc858b2c05f94f1bedbe0efa
Formbook
da9e890626946b96039a20cc107a0f7f0bc13440d9ede74799b6f9a2514e3759
Formbook
+ 15'416 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ky13 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220510-gjkwpsacdk/
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
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
7ef3b8bd3782f639b20371cbbc81e488efa76fc401fc786254830b953b9ac98f
MD5 hash:
0dbc653c405cc7620470520559ea5ba8
SHA1 hash:
8e89713f9312bc28a3dea4df33cd3b9db6dc7e78
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/d3b90e63-5ac2-44f0-9fb3-43286cd96e71/
Parent samples :
6c072202b1317248aa9654a34913ddd82a99633f5eb364d41f939bc7bc3b26f0
3230e570068c3d5d6d0017a368fd6e5b179eadbfec7a8d5eb9b10308fa22c637
87945ecb2a81ea654a98c72800f03a4202873f30f58212cdec3d6d577be04d4d
98555514bbd11ff97bc555c553087b857314f4da0488e2235080651ee71a0f0f
13e6fbc0a4ca130a7410f6b3446cc6bb776ff729b43e2fd3c54495885bd2b2b6
SH256 hash:
def2c7cc30b72c8dd78c275c9200201ce96f65795860bf9e227b751de783ccf7
MD5 hash:
ece2cc735437c3970100d723f7b4ebdc
SHA1 hash:
be9642fdaf6bc60710603e2e55e03f132d81ebe8
Link:
https://www.unpac.me/results/d3b90e63-5ac2-44f0-9fb3-43286cd96e71/
SH256 hash:
f614226e9ade3b59378bb44f6427704583e96bc2cd3ec808a94ec5590b9ef74a
MD5 hash:
72581cd8d1030c4360051756ba6c1f58
SHA1 hash:
a6c155dbf32a86f12b43934ec07b4726c07a3489
Link:
https://www.unpac.me/results/d3b90e63-5ac2-44f0-9fb3-43286cd96e71/
SH256 hash:
69f05d9b821a11a78a8a0d60755b60f0dbc2a6603b17555797268e41353f9c56
MD5 hash:
25038b974ae9f4d5f8d3fc13bd9c8cff
SHA1 hash:
8132cd2160c8fa737e06e481eee9fe983b930c13
Link:
https://www.unpac.me/results/d3b90e63-5ac2-44f0-9fb3-43286cd96e71/
SH256 hash:
98555514bbd11ff97bc555c553087b857314f4da0488e2235080651ee71a0f0f
MD5 hash:
b740d49b362a4e9b72a84344d634d004
SHA1 hash:
3b803e0fddb0d2e41258f8f2c1645bc0192b8451
Link:
https://www.unpac.me/results/d3b90e63-5ac2-44f0-9fb3-43286cd96e71/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/98555514bbd1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/98555514bbd11ff97bc555c553087b857314f4da0488e2235080651ee71a0f0f

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.

Malspam

Formbook

Executable exe 98555514bbd11ff97bc555c553087b857314f4da0488e2235080651ee71a0f0f

(this sample)

  
Delivery method
Distributed via e-mail attachment

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