MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 919b5cd185f5a5ccd07c619fea2bd66e753c01bb504760a6b01e4d4c04fa4181. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
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SHA256 hash: 919b5cd185f5a5ccd07c619fea2bd66e753c01bb504760a6b01e4d4c04fa4181
SHA3-384 hash: 2aad1c72ec0979ca290b9945c6c679fe6485aa2d3c7b27fb5a30bc2fccb4e9460ada4f311bde3527b3a795edefbb9abb
SHA1 hash: 27ab7b36c50534c69d6ec25652a1a60da0cc9d92
MD5 hash: d98cd925ca8116c5516cd3db545f0bf8
humanhash: north-comet-carpet-monkey
File name:MASTER_CTM_BREAKDOWN.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'133'056 bytes
First seen:2026-06-11 02:53:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'067 x AgentTesla, 20'019 x Formbook, 12'352 x SnakeKeylogger)
ssdeep 24576:C91r+luTtko9Bsa84Ocqf8XG3JzFClD+tJX2dl0vMHv:W+lEkoAab9qEXGtUhUJ4yvMH
TLSH T1463501446A57E407C954573A8AE1F17813BC8EC8F412D323AFED7EEBB927B454D88242
TrID 72.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.4% (.EXE) Win64 Executable (generic) (6522/11/2)
4.4% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
170
Origin country :
CH CH
Vendor Threat Intelligence
Malware configuration found for:
NETReactor RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/f0a88922-b2be-4b51-a853-5198ed653da5/
Malware family:
n/a
ID:
1
File name:
_919b5cd185f5a5ccd07c619fea2bd66e753c01bb504760a6b01e4d4c04fa4181.exe
Verdict:
No threats detected
Analysis date:
2026-06-11 02:57:08 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7408d3d8-c713-40e3-adf9-fbde8f9e62d6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3586.5727.10132.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a2a236734eaf30d8ce4b4b7
Tags:
virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
net_reactor obfuscated packed packed
Link:
https://www.filescan.io/uploads/6a2a23628161ac6cb55edade/reports/11ef2321-c059-4abb-b215-78f8e9d6457d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/919b5cd185f5a5ccd07c619fea2bd66e753c01bb504760a6b01e4d4c04fa4181
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-06-10T23:51:00Z UTC
Last seen:
2026-06-10T23:57:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/919b5cd185f5a5ccd07c619fea2bd66e753c01bb504760a6b01e4d4c04fa4181/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/9d302231-68cc-41fa-945d-aa7369f0d066
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1926331
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious 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
Queues an APC in another process (thread injection)
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)
Unusual module load detection (module proxying)
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1926331 Sample: MASTER_CTM_BREAKDOWN.exe Startdate: 11/06/2026 Architecture: WINDOWS Score: 100 34 www.vrechke.ru 2->34 36 www.umpgsongs.music 2->36 38 18 other IPs or domains 2->38 46 Suricata IDS alerts for network traffic 2->46 48 Antivirus detection for URL or domain 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 52 7 other signatures 2->52 11 MASTER_CTM_BREAKDOWN.exe 3 2->11         started        signatures3 process4 file5 32 C:\Users\...\MASTER_CTM_BREAKDOWN.exe.log, ASCII 11->32 dropped 62 Injects a PE file into a foreign processes 11->62 64 Unusual module load detection (module proxying) 11->64 15 MASTER_CTM_BREAKDOWN.exe 11->15         started        signatures6 process7 signatures8 66 Maps a DLL or memory area into another process 15->66 18 J6n3NyUIr75CAo.exe 15->18 injected process9 process10 20 takeown.exe 13 18->20         started        signatures11 54 Tries to steal Mail credentials (via file / registry access) 20->54 56 Tries to harvest and steal browser information (history, passwords, etc) 20->56 58 Modifies the context of a thread in another process (thread injection) 20->58 60 4 other signatures 20->60 23 AXms25DyaNYpEK.exe 20->23 injected 26 chrome.exe 20->26         started        28 firefox.exe 20->28         started        process12 dnsIp13 40 www.fitmin.fun 185.104.45.67, 49698, 80 UKRAINE-ASUA Ukraine 23->40 42 onstatic-pt.setupdns.net 81.88.57.70, 49716, 49717, 49718 REGISTER-ASIT Italy 23->42 44 12 other IPs or domains 23->44 30 WerFault.exe 4 26->30         started        process14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/919b5cd185f5a5ccd07c619fea2bd66e753c01bb504760a6b01e4d4c04fa4181
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/919b5cd185f5a5ccd07c619fea2bd66e753c01bb504760a6b01e4d4c04fa4181/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sgnvzumf6ws4zud4mgp6uk6wnz2tyan3kbdwbjvqdzguybh2igaq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/260611-dd39baas8r/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
919b5cd185f5a5ccd07c619fea2bd66e753c01bb504760a6b01e4d4c04fa4181
MD5 hash:
d98cd925ca8116c5516cd3db545f0bf8
SHA1 hash:
27ab7b36c50534c69d6ec25652a1a60da0cc9d92
Link:
https://www.unpac.me/results/e8a42524-49b4-4b54-b595-c8164a903d87/
SH256 hash:
5f42eb39ab4b0bd2146a041a921ad316db253d49c0344cf307702968fd91564c
MD5 hash:
c8f5af416eba9e6338ce44f3c969b922
SHA1 hash:
2b285d87078f928d4c1338405e746e9f8d57d602
Link:
https://www.unpac.me/results/e8a42524-49b4-4b54-b595-c8164a903d87/
SH256 hash:
1b7bc097c92735446793117427eb63e581aa3ea6982a75ec872cd27fbe2e9b5e
MD5 hash:
d3149fbfe65d3da08baca186a70bbcc7
SHA1 hash:
63a1460c9356fbda25d63119693c43d69637796f
Link:
https://www.unpac.me/results/e8a42524-49b4-4b54-b595-c8164a903d87/
SH256 hash:
65ca7c3509eea648744d269d72e978ba7c77b8ec65a81f7baf511230c0b7e96b
MD5 hash:
5bab0009e7f91a70f480da67807d3310
SHA1 hash:
9805437632e1b142d37456ef67cb199edca6c4a2
Link:
https://www.unpac.me/results/e8a42524-49b4-4b54-b595-c8164a903d87/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.87
Link:
https://yomi.yoroi.company/submissions/919b5cd185f5a5ccd07c619fea2bd66e753c01bb504760a6b01e4d4c04fa4181

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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information

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

Malspam

Formbook

Executable exe 919b5cd185f5a5ccd07c619fea2bd66e753c01bb504760a6b01e4d4c04fa4181

(this sample)

  
Delivery method
Distributed via e-mail attachment

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