MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 92f7889579c919e3c4a5f65717a71ccf029ea1118d3b70969a2c85276cb61698. 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: 17


Intelligence 17 IOCs YARA 1 File information Comments
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SHA256 hash: 92f7889579c919e3c4a5f65717a71ccf029ea1118d3b70969a2c85276cb61698
SHA3-384 hash: 79338f126e53d8c55f3cc14b4f8f0c551223e5403b1777b983c3e13c2b7da3d16c15fef507cd3a7fddfec2a33d03dc8d
SHA1 hash: 027001048bf6f99cf66df6516641675ab8cfb688
MD5 hash: 705c4aac6eecb622c7261ae3907b70a1
humanhash: delta-oklahoma-london-equal
File name:rock99043.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:309'668 bytes
First seen:2023-08-24 09:44:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:xYa6z7CItn64bpJWfVi7pJn3CffAYmZ52v6:xYBOv4dwfVa3CXhmZc6
Threatray 1'838 similar samples on MalwareBazaar
TLSH T1BF64AEE7DB87A7D6D745E035193AEE1ACC2A9731D1044666A30ECEC72C2070268EFDB5
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e8e8a0c0c090e8c4 (2 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
285
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
rock99043.exe
Verdict:
Malicious activity
Analysis date:
2023-08-24 09:52:31 UTC
Tags:
formbook xloader stealer spyware
Link:
https://app.any.run/tasks/e271b99e-2f6b-4a9e-9734-5a365b360fa9

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/444451/
Detection(s):
SecuriteInfo.com.Win32.AdwareX-gen.7897.22817.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/108456/overview
Behaviour
MalwareBazaar
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/92f7889579c919e3c4a5f65717a71ccf029ea1118d3b70969a2c85276cb61698
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/fa156e16-4fcf-4fcd-9de7-00f3bbe528c8
Result
Threat name:
FormBook, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1296542
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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 dropped file
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 detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1296542 Sample: rock99043.exe Startdate: 24/08/2023 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 8 other signatures 2->44 10 rock99043.exe 18 2->10         started        process3 file4 28 C:\Users\user\AppData\Local\...\ngdrj.dll, PE32 10->28 dropped 30 C:\Users\user\AppData\Local\...\nsdB76C.tmp, Atari 10->30 dropped 56 Detected unpacking (changes PE section rights) 10->56 58 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 10->58 60 Maps a DLL or memory area into another process 10->60 62 Tries to detect virtualization through RDTSC time measurements 10->62 14 rock99043.exe 10->14         started        signatures5 process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 17 explorer.exe 2 1 14->17 injected process8 dnsIp9 32 xn--4dbhqqc5dn.com 15.197.142.173, 49757, 80 TANDEMUS United States 17->32 34 vip.tesucdn.com 43.131.34.30, 49753, 80 LILLY-ASUS Japan 17->34 36 6 other IPs or domains 17->36 46 System process connects to network (likely due to code injection or exploit) 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 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/92f7889579c919e3c4a5f65717a71ccf029ea1118d3b70969a2c85276cb61698/
Threat name:
Win32.Trojan.Nemesis
Create hunting rule
Status:
Malicious
First seen:
2023-08-23 17:20:25 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sl3yrflzzem6hrff6zlrpjy4z4bj5iirru5xbfu2fscso3fwc2ma._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
14ae647473cbf4def9becdbbb1f007fd8c96c63be5c88014415ab13e6467168f
Formbook
151fb5746b08b95408b92e08f4bbeac8c4a1a3fc3ad6f43d237357f10476b33f
Formbook
477ca79c48c0ae888a5da641e5fbabc7d7c8ba7100e77a9b09cc66719360b086
Formbook
959fc8883e6b1d4ab77f9738792435e2dae1969530f36d2672db6cb397778687
Formbook
96c459f3f71ca66620515448f8dfa12c67d8b3e020776c93ccda641cce782ad6
Formbook
9c3860c6744d8b2718e1109e327795014997a81b0e21706a96242d0f8d52f55b
Formbook
a1662b8e9f60ae12d014dc7bf567d136abef56c45d76b65c765c71d411c7ee8f
Formbook
d0294bc11b1c8e0655189aba2ade4ffb54da6f36e2afc2ef2e0045a5a17203bf
Formbook
db9bbd49b5b6cf0d0faa600dbdf08a4a56a3f3a37931c70792911481c4a56b24
Formbook
ef66ea0bcee19ccd3d2771a170ff218a3e43b27f1b18f24e08685cb4d3fe053a
Formbook
+ 1'828 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:r08c rat spyware stealer trojan
Link:
https://tria.ge/reports/230824-lq3gjsbe86/
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
d3eff07b2aa8a46e56c8af2cd701fa7456c6336760b614e8a2bfdc2462cc29cf
MD5 hash:
1f64874262210b49fbbb46e6e1ed0e35
SHA1 hash:
b0b4024fa733c07bd766a46cdac5d6636694092c
Link:
https://www.unpac.me/results/5f02fb9e-7b18-4fe4-9fa4-f55c4230b10b/
SH256 hash:
92f7889579c919e3c4a5f65717a71ccf029ea1118d3b70969a2c85276cb61698
MD5 hash:
705c4aac6eecb622c7261ae3907b70a1
SHA1 hash:
027001048bf6f99cf66df6516641675ab8cfb688
Link:
https://www.unpac.me/results/5f02fb9e-7b18-4fe4-9fa4-f55c4230b10b/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/92f7889579c9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/92f7889579c919e3c4a5f65717a71ccf029ea1118d3b70969a2c85276cb61698

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 92f7889579c919e3c4a5f65717a71ccf029ea1118d3b70969a2c85276cb61698

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/444451/

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