MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7f3a6082c0ab2b881863c4dfe7328ef497155d2d962fa4a1976a5c26ec1d4e66. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7f3a6082c0ab2b881863c4dfe7328ef497155d2d962fa4a1976a5c26ec1d4e66
SHA3-384 hash: 61d922c33e13cc7a89da397d305857c283afa30863808f97456a247056bd5fb3f3b54a23dab67a595066a74c1caef7dd
SHA1 hash: 67e622f51e4c1f128ac003e2132b26a87a582a6d
MD5 hash: 3979572152f3fb2b98211eeb761309af
humanhash: kansas-south-foxtrot-hot
File name:RFQ3978 39793980.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:861'696 bytes
First seen:2024-12-12 20:35:16 UTC
Last seen:2024-12-16 13:06:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:0jlIhSPd+pz5yOA07B73WHJhiO0ZlzxXvhFNI:0jl+SPspzJA09TDHPvhF
TLSH T1D105D0C03B2A7701DEACB934853AEDB862641E78B00479F37EDD2B57B6D90126A1CF54
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon f0cc862b23b2ccf0 (8 x Formbook, 2 x DarkCloud, 1 x VIPKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
449
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ3978 39793980.pdf.exe
Verdict:
No threats detected
Analysis date:
2024-12-12 20:54:25 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/38eec1d0-bdbe-496b-ad7f-b28b8f103dd7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.BackDoor.AgentTeslaNET.37.30513.11764.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=675b4ad6259e5b60544c1046
Tags:
underscore virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a file
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed packed packer_detected phishing
Link:
https://www.filescan.io/uploads/675b4933d0bf6a811f2d5508/reports/d3539455-4d28-47f5-aba0-b64a330b485c/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/7f3a6082c0ab2b881863c4dfe7328ef497155d2d962fa4a1976a5c26ec1d4e66
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3443eb9c-cd15-40a9-a29c-c76b0082f402
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1574079
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Suspicious Double Extension File Execution
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1574079 Sample: RFQ3978 39793980.pdf.exe Startdate: 12/12/2024 Architecture: WINDOWS Score: 100 30 www.030002350.xyz 2->30 32 www.elitevibes.top 2->32 34 5 other IPs or domains 2->34 44 Suricata IDS alerts for network traffic 2->44 46 Antivirus / Scanner detection for submitted sample 2->46 48 Yara detected FormBook 2->48 52 7 other signatures 2->52 10 RFQ3978 39793980.pdf.exe 3 2->10         started        signatures3 50 Performs DNS queries to domains with low reputation 30->50 process4 file5 28 C:\Users\...\RFQ3978 39793980.pdf.exe.log, ASCII 10->28 dropped 13 MSBuild.exe 10->13         started        process6 signatures7 64 Maps a DLL or memory area into another process 13->64 16 shazRxxmQwU.exe 13->16 injected process8 signatures9 42 Found direct / indirect Syscall (likely to bypass EDR) 16->42 19 regini.exe 13 16->19         started        process10 signatures11 54 Tries to steal Mail credentials (via file / registry access) 19->54 56 Tries to harvest and steal browser information (history, passwords, etc) 19->56 58 Modifies the context of a thread in another process (thread injection) 19->58 60 3 other signatures 19->60 22 shazRxxmQwU.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 36 www.327531.buzz 43.199.54.158, 49829, 49835, 49841 LILLY-ASUS Japan 22->36 38 www.030002350.xyz 161.97.142.144, 49990, 49997, 50004 CONTABODE United States 22->38 40 4 other IPs or domains 22->40 62 Found direct / indirect Syscall (likely to bypass EDR) 22->62 signatures14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/7f3a6082c0ab2b881863c4dfe7328ef497155d2d962fa4a1976a5c26ec1d4e66
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7f3a6082c0ab2b881863c4dfe7328ef497155d2d962fa4a1976a5c26ec1d4e66/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-12-12 20:36:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=p45gbawavmvyqgddytp6omuo6slrkxjnsyx2jimxnjocn3a5jzta._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/241212-zdkb4aymhk/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/29a9b511-bee0-4103-aaa1-8d19736bcf82
Unpacked files
SH256 hash:
3164b7ddc70840060ed24046ccadd294788fb0921739f240c2e10cd25a214b42
MD5 hash:
a3fc02e8a210ef32ffce18dbe5792ec3
SHA1 hash:
48cfe382fd240b20d86a5656aefd7407b9dda99b
Link:
https://www.unpac.me/results/a5a25969-513b-4143-b48c-6ebbcd53c870/
SH256 hash:
e8df549d3cae852bcbc4df49a74f54fb918694ca5fda1b20ce6c3bcf63f6648c
MD5 hash:
295743aed79c92f57925d446bb98760f
SHA1 hash:
d9fe34cb7a389a1b5c90ce3746b1596da9c95617
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/a5a25969-513b-4143-b48c-6ebbcd53c870/
SH256 hash:
ef597ac60d47ebe880cf42719808a6d01a3bd7cb29b4a7206955cd82bba68b4f
MD5 hash:
c027e4c7aba4fccb6b8c45a96ea3d6cf
SHA1 hash:
d36e9f70b8158b415f6b2502c1991f8a406901e8
Link:
https://www.unpac.me/results/a5a25969-513b-4143-b48c-6ebbcd53c870/
SH256 hash:
117c984a4b6c0bc0d29ee3bee08babe51bf8e5e9288726974c200fd5ca58ed10
MD5 hash:
bc07fcf586482a89d878684072409c5a
SHA1 hash:
ca195505dd9659666eb029983f6e189ce316ae9e
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/a5a25969-513b-4143-b48c-6ebbcd53c870/
Parent samples :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 hash:
7f3a6082c0ab2b881863c4dfe7328ef497155d2d962fa4a1976a5c26ec1d4e66
MD5 hash:
3979572152f3fb2b98211eeb761309af
SHA1 hash:
67e622f51e4c1f128ac003e2132b26a87a582a6d
Link:
https://www.unpac.me/results/a5a25969-513b-4143-b48c-6ebbcd53c870/
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/7f3a6082c0ab2b881863c4dfe7328ef497155d2d962fa4a1976a5c26ec1d4e66

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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