MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 656298047d558e1bc1eb67c63d2af80445d7af3b89f68db20c45ad0d452070a8. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
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SHA256 hash: 656298047d558e1bc1eb67c63d2af80445d7af3b89f68db20c45ad0d452070a8
SHA3-384 hash: 9af34d472f9006ee1305e1e4245a4a87e445022e96f1ba35c2c9b881e9a888a56e3f7d41abf853c0b8511be890540287
SHA1 hash: 44865707bc3bd8bfcc8cadeef04907801ff4a131
MD5 hash: dce4b96d5340652d9521d2eaeb356963
humanhash: chicken-hydrogen-fish-glucose
File name:triage_dropped_file
Download: download sample
Signature Formbook
Create hunting rule
File size:449'024 bytes
First seen:2021-10-28 12:46:16 UTC
Last seen:2021-10-28 14:28:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'473 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:lYxiCPDXj4pLv/QGr7ESCgs1Z+RC25NZLiZJ0XPAtewmI/T5exF1CMlDmlEuk6Vc:KbXjWv/QKIS9h9cZJ0QmZ/CKmaky1V
Threatray 10'904 similar samples on MalwareBazaar
TLSH T12EA4D0487398F19FC467CF3A44911C10A671A8B7530BD313AAA7219D9A2F7CA9F146F3
Reporter malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
129
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/200923/
Detection(s):
SecuriteInfo.com.Suspicious.Win32.Save.a.12979.13170.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/617a9bc8db358dd15ee31655/reports/d0105405-df3d-41fe-a6aa-9466bb12f56d/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7edb2065-788a-492b-a6ff-d37daf6ce6fb
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/878577
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for sample
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 511011 Sample: triage_dropped_file Startdate: 28/10/2021 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 7 other signatures 2->42 10 triage_dropped_file.exe 3 2->10         started        process3 file4 28 C:\Users\user\...\triage_dropped_file.exe.log, ASCII 10->28 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 14 triage_dropped_file.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.versebay.com 119.28.128.52, 49791, 80 TENCENT-NET-AP-CNTencentBuildingKejizhongyiAvenueCN China 17->30 32 the22yards.club 184.168.96.211, 49854, 80 AS-26496-GO-DADDY-COM-LLCUS United States 17->32 34 6 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 wlanext.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
Create hunting rule
Link:
https://mwdb.cert.pl/sample/656298047d558e1bc1eb67c63d2af80445d7af3b89f68db20c45ad0d452070a8/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2021-10-28 12:47:05 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1e7da963a847c976589ec16cba08820882e735cdc10d07d78a391e4e63622f28
Formbook
25e5055023abbb8c18992618b6f04c94b8b13ff8bd33d4a4f8462d92902461bf
Formbook
721c03c3cc73dddfcf27e473fc9d1962dd59b3cc7f7b70cdc17d2d6a049aed8e
Formbook
c63cb761da677849b8382eb1d926569f00a04d57f2c789b63e7f2eb2e368a00c
Formbook
da2458789c338c2719661254515dba2fc92c21ef91a11da3d192a6542ca56814
Formbook
daac858e9ca5b0c8044385c2d94cbef17c41b0bd5c569ad7e03f0a51b4caab7a
Formbook
db4d5bd36f923fdd47daf48ace971f47e9764d27a2f88241f09c754c042efc28
Formbook
f136f4f9c59c4ff2582063222c6df106a3d1e3d7d9220ff73e3cb2ec487fe1db
Formbook
+ 10'894 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:cnp0 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/211028-pz7peagdal/
Behaviour
Gathers network information
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)
Malware Config
C2 Extraction:
http://www.ccnsv.net/cnp0/
Unpacked files
SH256 hash:
abd73b8e64ee9675009b91caa2b0914f78d2c94ff0260aef98bffd57e8a5eb34
MD5 hash:
779bc937449a4a9598644f64160b461e
SHA1 hash:
b9cf49a4adbfd6acefad5af05e0aaae4d18f00f9
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/bef0758b-d887-4231-8180-dfed2e97a3eb/
Parent samples :
da2458789c338c2719661254515dba2fc92c21ef91a11da3d192a6542ca56814
25e5055023abbb8c18992618b6f04c94b8b13ff8bd33d4a4f8462d92902461bf
1e7da963a847c976589ec16cba08820882e735cdc10d07d78a391e4e63622f28
60f929f6d1333f24d1a53d62b81f538e10e12e4e3d8dc2e9481ab06e3355322d
656298047d558e1bc1eb67c63d2af80445d7af3b89f68db20c45ad0d452070a8
97e2308f489be583ecaa74518e3c42be2da1e3f61347b983eed293ce3424a5f7
7dd2cb6cb441739419634c8a5aedbd44fc20357fe1c861924b3199e5f4e351ba
d6a8dc15a79bd9360c26def381a088beabf9479b710001a8c1ed8d265a754f92
SH256 hash:
c2ce6acf28301aa3cb6139c52fc84e1d6a1e42b52179829c3e08d16f2fe920b1
MD5 hash:
ad7c7d4a3052531b337893f1af073730
SHA1 hash:
34527498bcb5fbe8b26d4def4fda968e62fd5d80
Link:
https://www.unpac.me/results/bef0758b-d887-4231-8180-dfed2e97a3eb/
SH256 hash:
4d1ee061c817ea30ca4e461a4f44388662c1c1c2775be2b323858ddbc1679b35
MD5 hash:
1b6d3d31872537cc611ff4322ffc1099
SHA1 hash:
0108adafb207ce044bfb3f7933da45594c545bee
Link:
https://www.unpac.me/results/bef0758b-d887-4231-8180-dfed2e97a3eb/
SH256 hash:
656298047d558e1bc1eb67c63d2af80445d7af3b89f68db20c45ad0d452070a8
MD5 hash:
dce4b96d5340652d9521d2eaeb356963
SHA1 hash:
44865707bc3bd8bfcc8cadeef04907801ff4a131
Link:
https://www.unpac.me/results/bef0758b-d887-4231-8180-dfed2e97a3eb/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/656298047d558e1bc1eb67c63d2af80445d7af3b89f68db20c45ad0d452070a8

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/200923/

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