MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2b61cfb00cc8a45fdae91c176c8e68be4ac7cefbe0fab5781e5fa44d2ec4ca9f. 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 3 File information Comments
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SHA256 hash: 2b61cfb00cc8a45fdae91c176c8e68be4ac7cefbe0fab5781e5fa44d2ec4ca9f
SHA3-384 hash: b417ef4970d3f4653f5293f841c67f0c4bfa5cc1aaae3cb8ffd983a50a7d4ce8a39a36f39cd2a34e53ce5afa8c35ee46
SHA1 hash: 504fbe18ffb86b1eb5c042cb035a406db3ed4c30
MD5 hash: a0e6014f72be2a52b6c40021348b429d
humanhash: artist-aspen-kansas-blossom
File name:a0e6014f72be2a52b6c40021348b429d.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:408'064 bytes
First seen:2021-11-24 18:39:25 UTC
Last seen:2021-11-24 21:05:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:99gfj75ya6lCCIdwtL7kfUAsQrdhWsWocp1yK9ljgSpkQLxr35d7Rrh5:9E4aqAKe3WsWFdBpbLnJl
Threatray 11'573 similar samples on MalwareBazaar
TLSH T1A994012032D0B367CC764BF50D2422C517B321423D25E76DAEC921DE6E72F5A8762BA7
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
156
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a0e6014f72be2a52b6c40021348b429d.exe
Verdict:
Malicious activity
Analysis date:
2021-11-24 18:57:04 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ee36c90d-88f5-497f-a423-1b527062d8c3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Detection(s):
SecuriteInfo.com.Trojan.Inject4.20507.5120.10955.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Сreating synchronization primitives
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/619e870db71ceed4152edb3a/reports/7c594b37-cebe-4b7e-986a-51e825809788/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c032af9b-ca4c-4963-bc4e-7c1b22057232
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/895665
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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: 528141 Sample: PKWvT2Siyf.exe Startdate: 24/11/2021 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for URL or domain 2->40 42 7 other signatures 2->42 10 PKWvT2Siyf.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\PKWvT2Siyf.exe.log, ASCII 10->28 dropped 56 Tries to detect virtualization through RDTSC time measurements 10->56 14 PKWvT2Siyf.exe 10->14         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.haima168.com 17->30 32 www.aaammm.xyz 17->32 34 prod-sav-park-lb01-1919960993.us-east-2.elb.amazonaws.com 3.14.206.87, 49852, 80 AMAZON-02US United States 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 46 Performs DNS queries to domains with low reputation 17->46 21 WWAHost.exe 17->21         started        signatures10 process11 signatures12 48 Self deletion via cmd delete 21->48 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
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Link:
https://mwdb.cert.pl/sample/2b61cfb00cc8a45fdae91c176c8e68be4ac7cefbe0fab5781e5fa44d2ec4ca9f/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2021-11-24 05:17:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
14642e431716be5f43044de68f915037e0358a401f59e490f5370cc5563a1a23
Formbook
49609c0487ceeec0771547efd9277b01f494be83549bc0245330672ee962c50c
Formbook
4c5887639c1dfcc0349690d98e9c8034029a6fa2f2e6bdbba96371bf23ce3301
Formbook
60f3b28c265ee86ff2fda42a3147348bf53971060d9b97e2cd631a32f80ee0cd
Formbook
79d3e390f7d102dfb3dd6840d95a54fe2dd26a5f90ab8d040be7024e6f9d53fc
Formbook
832160e3e8d0fa8b10ae46a52268d0f2aa5a29d2e084c255babe7423c696db53
Formbook
c54011773bed423243ea28917f4ee89a825cf2886dbb4b0939bac3e955284c0b
Formbook
d96040239b3b2251bbe2e9aeb3f00cfef3917b6427ce2b42260bb437351e6476
Formbook
e6cb9330e6bbd16bdd58aac76070200e17389a45c4aead703d4ab970038ff8a2
Formbook
+ 11'563 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ky0y rat spyware stealer trojan
Link:
https://tria.ge/reports/211124-xa8t6sgfg6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.thedailybugleblog.com/ky0y/
Unpacked files
SH256 hash:
11e0bd70d314e62f0a68d7b7c38d4173dcd7fda0049f59980ad37b475c4327ad
MD5 hash:
89fa28d208dc13c7be3063019b0ab727
SHA1 hash:
56a711a2c5d1fa59b852cc978956827f09c8fefd
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/72494477-55a6-486f-a99c-5746a14c8a8a/
Parent samples :
14642e431716be5f43044de68f915037e0358a401f59e490f5370cc5563a1a23
2b61cfb00cc8a45fdae91c176c8e68be4ac7cefbe0fab5781e5fa44d2ec4ca9f
SH256 hash:
8e515d1234e603dc4ae769ccf8d431b3df5ec3a1ccce0956e37f92cdb6760bcd
MD5 hash:
ccb2d25ae72b4ed2fb7fd1b15dc40a93
SHA1 hash:
2b357e97ea701baabd1c94b96279627a1cf81d04
Link:
https://www.unpac.me/results/72494477-55a6-486f-a99c-5746a14c8a8a/
SH256 hash:
f30ca642597c059f9dbcc6cfea27687245fbcaf5456be0b7a4528d946f3a0a05
MD5 hash:
0f6349011cf5446131faf0cadbace87b
SHA1 hash:
0cd48b5cb5a0ca095043c333c9002ba5273e92e8
Link:
https://www.unpac.me/results/72494477-55a6-486f-a99c-5746a14c8a8a/
SH256 hash:
2b61cfb00cc8a45fdae91c176c8e68be4ac7cefbe0fab5781e5fa44d2ec4ca9f
MD5 hash:
a0e6014f72be2a52b6c40021348b429d
SHA1 hash:
504fbe18ffb86b1eb5c042cb035a406db3ed4c30
Link:
https://www.unpac.me/results/72494477-55a6-486f-a99c-5746a14c8a8a/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/2b61cfb00cc8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/2b61cfb00cc8a45fdae91c176c8e68be4ac7cefbe0fab5781e5fa44d2ec4ca9f

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.

Web download

Formbook

Executable exe 2b61cfb00cc8a45fdae91c176c8e68be4ac7cefbe0fab5781e5fa44d2ec4ca9f

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/209129/
  
URLhaus
https://urlhaus.abuse.ch/url/1808570/
  
Delivery method
Distributed via web download

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