MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 45b1927934099ea95d315972f7f128ba3af4a64aa483d964f94c599e8e16f094. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 45b1927934099ea95d315972f7f128ba3af4a64aa483d964f94c599e8e16f094
SHA3-384 hash: 92e57a11034c6b1f7d27ec33ea7683c4e3ee693873714b3484b107c30ce4dec2beafa88b7a41cc313ac3f8ddd0333464
SHA1 hash: 2497d5377572816d9490f074949efde8e65f49f4
MD5 hash: c26f62be6304e0e2c12dba146a372c21
humanhash: beryllium-stairway-red-missouri
File name:c26f62be6304e0e2c12dba146a372c21
Download: download sample
Signature Formbook
Create hunting rule
File size:264'136 bytes
First seen:2022-07-14 05:54:34 UTC
Last seen:2022-07-14 10:23:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 3072:w5E9lXWAIHHC90pTv9FpQ44FcCjcnKChd0y9+Sc+KTC55YsrClf+vdvLUDNrmWDC:0EuqaTFxIcCjK/A3u5oavoDNCWWA
TLSH T1F5440242BED1EC44C8650E35A4D991156A64F752F812DBBBAE68C3980B873DE0D3CCE7
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter openctibr
Tags:exe FormBook OpenCTI.BR Sandboxed

Intelligence

File Origin
# of uploads :
2
# of downloads :
144
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/288301/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Launching a process
Creating a file
Launching cmd.exe command interpreter
Сreating synchronization primitives
Searching for synchronization primitives
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/62cfafc5cc6fd0fd60fb82e4/reports/477fc17f-797d-41f7-a44d-c46afab0e892/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/c5b5c5da-bf92-45b7-ae86-e5387f86db26
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1031944
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
C2 URLs / IPs found in 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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/45b1927934099ea95d315972f7f128ba3af4a64aa483d964f94c599e8e16f094/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-06-15 11:20:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=iwyze6jubgpksxjrlfzpp4jixi5pjjskusb5szhzjrmz5dqw6cka._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:s3s3 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220714-gmkecabha8/
Behaviour
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
Formbook payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
072f4f8ae3bf501da1075c9689b1e76d2f3def6d05686be3af0f8a90f965d784
MD5 hash:
9d3c6d818a558a5718f0bc65bb953efb
SHA1 hash:
0631e3047afd1443452de5d323f2910eb371b75f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/d90187dc-b1e7-4cb6-8e98-8f78ce223f92/
Parent samples :
d5d15ff5604856647866fcb66e6353cf860114ffe01af6662f53c2a39a7676d9
1a2b06d9313d1317f16483b27f97bb569dffa8e22c1eddd25fe753a92146543b
c69a8cae5c55eb104275465b7e243114b151f49a54997cb496aebb747b4bfc50
6fc02ab37d33d1c6b53b81a7df2bc2abf5bec4651c4a8f93280ed6f46dd38f17
81398fcf0e9612b507cbdf18df673c828d8e08bd8a6abbfcf00261fe84e0bb8d
8f0fba4653d18b7a2b79042ad9f43404cf9adfb4c36cdb6e549647de16c8139e
45b1927934099ea95d315972f7f128ba3af4a64aa483d964f94c599e8e16f094
acb0ec13d308fba63fbc5fd12a66d4f72e61692bcb04bd051ec7844aed438e3e
c2e38b05804fa43eb0cd54de0187ef7d90aa79191877124a504690172ca33b78
1dc7309f7dd394071a6b83e32be1cd98484f813b22790b0a7ec426488cfd82cb
0c40251e1bc8bdd47fbd6b3d235ca27d95801b716734633f7e637ae113149b26
b5fcf18c0ac1815c33ea1a6691bd69f1897b772184231beaf1e4f3f92882ae3e
b8f378b349e37f3590cb8cb4c80a4c9928e79eee8e02c7a28936955989326af6
844c895254d53e80e0e0f00a2c8e1e212db8ac218ca8f5b8a9b6c20e346e280a
fa8634a43c5dfb22286abeaa9f3c1a62af85ebb4052be0257cdfa50895148876
SH256 hash:
4ac79efdc5aa1a3ddd04b85c698dde2566d5e519cc53cd17c2b19df234b5b8a3
MD5 hash:
3a96debaf56bae0e341259e7edaf8280
SHA1 hash:
edae4f8134b21b9014fd6cd0eb7be8f2185400c5
Link:
https://www.unpac.me/results/d90187dc-b1e7-4cb6-8e98-8f78ce223f92/
SH256 hash:
45b1927934099ea95d315972f7f128ba3af4a64aa483d964f94c599e8e16f094
MD5 hash:
c26f62be6304e0e2c12dba146a372c21
SHA1 hash:
2497d5377572816d9490f074949efde8e65f49f4
Link:
https://www.unpac.me/results/d90187dc-b1e7-4cb6-8e98-8f78ce223f92/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AlphaCrypt
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/45b1927934099ea95d315972f7f128ba3af4a64aa483d964f94c599e8e16f094

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 45b1927934099ea95d315972f7f128ba3af4a64aa483d964f94c599e8e16f094

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2236164/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/288301/

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