MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b27f17a52b7a491a0887307a8e4984f283b8076c1e49d535863068c51758c8bc. 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: 18


Intelligence 18 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b27f17a52b7a491a0887307a8e4984f283b8076c1e49d535863068c51758c8bc
SHA3-384 hash: 6dc74c22356033d3b6366b86f06545f40a729e604c65ab53cdcc59232231c182b94b02fd515dd7054fdbdefed78a8771
SHA1 hash: 88ecc75aac70068dbe860528aa7db7d37bdc6f18
MD5 hash: bead5e022ae3c553aaa727f783466727
humanhash: louisiana-lactose-uniform-cardinal
File name:Remittance Copy..exe
Download: download sample
Signature Formbook
Create hunting rule
File size:884'736 bytes
First seen:2025-08-14 09:00:28 UTC
Last seen:2025-09-05 12:37:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:8zLOwUNeZzWxEOInqcnO37E3BGmhpDK+y86tA/dvlvBVGSr3s+wCQ1pug:oBhZuEzTO43vhpOi6GfJgSr3s3Ckr
Threatray 188 similar samples on MalwareBazaar
TLSH T1251502DB3A00CB07DE657F784CE1D3BAC266EE88A411C307A9E4FDDB7926D01296D152
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
dhash icon 72d0d4e0e4d4f022 (3 x Formbook, 1 x AgentTesla, 1 x SnakeKeylogger)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
80
Origin country :
PL PL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
RemittanceCopy..exe
Verdict:
Malicious activity
Analysis date:
2025-08-14 09:06:28 UTC
Tags:
netreactor formbook xloader
Link:
https://app.any.run/tasks/4880fb60-3b94-4c4d-874a-0934bf9c0400

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/21300/
Detection(s):
SecuriteInfo.com.Variant.Genie.8DN.170.23517.9806.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=689da5ce31e468d93724b7ed
Tags:
fareit virus spawn msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/689da5cf397fd3ce6fa8f8aa/reports/836939eb-a8b4-4411-baf8-dec42a2a38ed/overview
Verdict:
Malicious
Labled as:
Genie.8DN.Generic
Link:
https://www.hybrid-analysis.com/sample/b27f17a52b7a491a0887307a8e4984f283b8076c1e49d535863068c51758c8bc
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/67df2ad7-9c7c-4e63-bfef-f3d51425e350
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b27f17a52b7a491a0887307a8e4984f283b8076c1e49d535863068c51758c8bc
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable PDB Path PE (Portable Executable) SOS: 0.30 Win 32 Exe x86
Link:
https://app.malva.re/file/bead5e022ae3c553aaa727f783466727
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b27f17a52b7a491a0887307a8e4984f283b8076c1e49d535863068c51758c8bc/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/b27f17a52b7a491a0887307a8e4984f283b8076c1e49d535863068c51758c8bc
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-08-14 01:27:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wj7rpjjlpjerucehgb5i4sme6kb3qb3mdze5knmggbumkf2yzc6a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
120449b84850ba5b41e73f85e2f178271dd1cd0b8743f1e5af6ef760aa39b199
Formbook
27d9bc341947a02d196c43a4ecc1ad5d0506e34b901fa8dd1d74be4eaa8753cf
Formbook
50c0d11e8f7153f1129643673ded00e74fe4cb9e929b0a97d9c5bcf983805e41
Formbook
a172deb94ea7c05df19865326d5b50e5e2b594f32e9f417b8f5544e2cf98cbcc
Formbook
bc8c43e5b2edd24663599d319b7c0b0f855504d66c6e26b122904781291a33a5
Formbook
cbfd2f5801de66675509ac345081342019346ab477b1b1d708b1f616363c4484
Formbook
cc6de21ebaf5b1da25218987714320f9dcc9dd38acad71a9513a42323621a2ed
Formbook
d89a76737ea433332fec51bc5662a0c87ed094e8dd6fcd9dd484377cc2ec5d88
Formbook
e3f0db807199f2c11edacf8fa4a177b047b984f1fb5e85418c43d64c63bddf6d
Formbook
ea64b5ce174c5c197fdcb0cdd9c9371e941c3cebb1a990fdf069b596c02d411d
Formbook
error
Formbook
+ 178 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250814-kys3ea11cz/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8008f9b5-e747-449f-9d79-93023a0b7925
Unpacked files
SH256 hash:
b27f17a52b7a491a0887307a8e4984f283b8076c1e49d535863068c51758c8bc
MD5 hash:
bead5e022ae3c553aaa727f783466727
SHA1 hash:
88ecc75aac70068dbe860528aa7db7d37bdc6f18
Link:
https://www.unpac.me/results/74260141-9279-4e23-9031-b8e22458490f/
SH256 hash:
ae9636466d21decb91b7506adffce283e2652a10b4a54a665f6fe95362401f8e
MD5 hash:
99cbfdf6df98b1f5871eab4e7ad72ce6
SHA1 hash:
1810136683336172ac6c7c253eacf180e3384689
Link:
https://www.unpac.me/results/74260141-9279-4e23-9031-b8e22458490f/
SH256 hash:
3864cab45fa63454e00e8513c1241bec4cc9b64ca710fe35d15289ecf90a2723
MD5 hash:
a064cd07b5e0c75c1f194e65eb284f52
SHA1 hash:
69c9d7e2636158af91f69475460cb26e0fd5e8b9
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/74260141-9279-4e23-9031-b8e22458490f/
SH256 hash:
c6d60625cf125f8667269925e9845d37d979a101cc7143590bd1dd28a654e6e2
MD5 hash:
51734f0ed37a35ac3b2bfbf539d35ffb
SHA1 hash:
cd569180511ec590b545ef8d130ad92d85dacf44
Link:
https://www.unpac.me/results/74260141-9279-4e23-9031-b8e22458490f/
SH256 hash:
ad92bae492f846a42e373aefd9649dc6825c2b8dd0260c7d7f08a589353f51da
MD5 hash:
fca05b8c305f15db15c314c0a3529f1d
SHA1 hash:
b1f4efa1bed4ba2f126fa3d71ee9bb8c29a6ae30
Link:
https://www.unpac.me/results/74260141-9279-4e23-9031-b8e22458490f/
Malware family:
zgRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b27f17a52b7a/report/overview.html
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/b27f17a52b7a491a0887307a8e4984f283b8076c1e49d535863068c51758c8bc

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/21300/

Comments