MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c9ff72b5be41b4298e4d202ec333d6e9cf80589f4112685e5040fcadd79b9605. 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: c9ff72b5be41b4298e4d202ec333d6e9cf80589f4112685e5040fcadd79b9605
SHA3-384 hash: 46278b66b8cf7a9b0650b5f6b0cb809261c85db6f11593f28e91ca51db2289534c207b9b82a5ce89aac813bdfb5c57a4
SHA1 hash: 8b9506d3bb37287f397d5a191059db2cb319ada2
MD5 hash: 44f70749d6293f21a87b4be14402a72b
humanhash: moon-alanine-victor-north
File name:RFQ 722_2042025.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:809'984 bytes
First seen:2025-02-04 08:10:42 UTC
Last seen:2025-02-04 10:17:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:K0sf53vkcOLq+RhB49RcL9efAa6OgS+ZjUG0/xU:A5sj++RTsSL9lJOgx1UG4
TLSH T11905129EBE699662CE1E0F73C363060CDA71AD73B281E2B218D819F45D52AD4D70BCC5
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 e0e698a08088a888 (20 x Formbook, 6 x AgentTesla, 3 x SnakeKeylogger)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
485
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ 722_2042025.exe
Verdict:
No threats detected
Analysis date:
2025-02-04 08:12:06 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/dba3e9b4-7255-41d2-b06d-1eebe160e1e9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.28790.2511.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a1cd102dcee78dd8194aec
Tags:
msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated obfuscated obfuscated packed packed packer_detected phishing vbnet
Link:
https://www.filescan.io/uploads/67a1cb9c6c662328c4a99314/reports/827d50ff-aad8-4a64-88cb-cc5468e3d174/overview
Verdict:
Malicious
Labled as:
HackTool[Obfuscator]/MSIL.DeepSea
Link:
https://www.hybrid-analysis.com/sample/c9ff72b5be41b4298e4d202ec333d6e9cf80589f4112685e5040fcadd79b9605
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/648ec611-5f07-4113-b88d-1d0fc46bb7e3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1606289
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
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)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
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)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1606289 Sample: RFQ 722_2042025.exe Startdate: 04/02/2025 Architecture: WINDOWS Score: 100 31 www.physicsbrain.xyz 2->31 33 www.autonomousrich.xyz 2->33 35 13 other IPs or domains 2->35 45 Antivirus detection for URL or domain 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected FormBook 2->49 53 6 other signatures 2->53 10 RFQ 722_2042025.exe 3 2->10         started        signatures3 51 Performs DNS queries to domains with low reputation 33->51 process4 file5 29 C:\Users\user\...\RFQ 722_2042025.exe.log, ASCII 10->29 dropped 65 Injects a PE file into a foreign processes 10->65 14 RFQ 722_2042025.exe 10->14         started        signatures6 process7 signatures8 67 Maps a DLL or memory area into another process 14->67 17 WdSUeoXb1v2XcS6Vr.exe 14->17 injected process9 signatures10 43 Found direct / indirect Syscall (likely to bypass EDR) 17->43 20 secinit.exe 13 17->20         started        process11 signatures12 55 Tries to steal Mail credentials (via file / registry access) 20->55 57 Tries to harvest and steal browser information (history, passwords, etc) 20->57 59 Modifies the context of a thread in another process (thread injection) 20->59 61 3 other signatures 20->61 23 WdSUeoXb1v2XcS6Vr.exe 20->23 injected 27 firefox.exe 20->27         started        process13 dnsIp14 37 www.corellia.pro 217.160.0.90, 49991, 49992, 49993 ONEANDONE-ASBrauerstrasse48DE Germany 23->37 39 www.topked.top 192.64.118.221, 49983, 49984, 49985 NAMECHEAP-NETUS United States 23->39 41 7 other IPs or domains 23->41 63 Found direct / indirect Syscall (likely to bypass EDR) 23->63 signatures15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c9ff72b5be41b4298e4d202ec333d6e9cf80589f4112685e5040fcadd79b9605
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c9ff72b5be41b4298e4d202ec333d6e9cf80589f4112685e5040fcadd79b9605/
Threat name:
Win32.Trojan.CrypterX
Create hunting rule
Status:
Malicious
First seen:
2025-02-04 03:52:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zh7xfnn6ig2ctdsneaxmgm6w5hhyawe7iejgqxsqid6k3v43sycq._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/250204-j3bs9a1kds/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/35abf651-0e5f-4eea-baa0-c5f8d8ff21f5
Unpacked files
SH256 hash:
c9ff72b5be41b4298e4d202ec333d6e9cf80589f4112685e5040fcadd79b9605
MD5 hash:
44f70749d6293f21a87b4be14402a72b
SHA1 hash:
8b9506d3bb37287f397d5a191059db2cb319ada2
Link:
https://www.unpac.me/results/b518407f-1810-4681-a3cd-5fffcd5254f6/
SH256 hash:
c6eb734d00fd5e8017b5a5064bfcc83423c3c088b0ded678ecfc50b6aa572516
MD5 hash:
91c8c661d924f2cb06f7e71858d30321
SHA1 hash:
242810831792960f1fc12e1f562f19c43a771dc7
Link:
https://www.unpac.me/results/b518407f-1810-4681-a3cd-5fffcd5254f6/
SH256 hash:
9092f24caa3abeaf1b6043ed3921a5a627a8437ae51cf4e9c8d4b14000066772
MD5 hash:
0610c31e0677018684b5dbd9da32900a
SHA1 hash:
6efb651595cc28fb9c2077278a3e166cfbe59638
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/b518407f-1810-4681-a3cd-5fffcd5254f6/
SH256 hash:
e8044f63acd1c3c9fddb084d2b58532119d2a69951fac1501d7cd05d8ba1df5d
MD5 hash:
edeca737824c0165209878705bc1438d
SHA1 hash:
953afa000960ed6635fd003f2748cf71cad6351b
Link:
https://www.unpac.me/results/b518407f-1810-4681-a3cd-5fffcd5254f6/
SH256 hash:
fef13db230d52659fe41660c66f9200b7355035ed3dae63d7bf60ebfb28d739b
MD5 hash:
e53517b4abf530330e218e2f099afa65
SHA1 hash:
875d6361a4c0fb31b7cbf26cbf3d7249c8b0b32a
Link:
https://www.unpac.me/results/b518407f-1810-4681-a3cd-5fffcd5254f6/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c9ff72b5be41/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/c9ff72b5be41b4298e4d202ec333d6e9cf80589f4112685e5040fcadd79b9605

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:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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.

Malspam

Formbook

rar 7366a295ac31722515a12c896f53ed3b0b46ff7d4babc6980c62ca0fce5ccc43

Formbook

Executable exe c9ff72b5be41b4298e4d202ec333d6e9cf80589f4112685e5040fcadd79b9605

(this sample)

  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 7366a295ac31722515a12c896f53ed3b0b46ff7d4babc6980c62ca0fce5ccc43
  
Dropped by
MD5 9fab30def8cd805231b96d5f11e14ab5

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

Comments