MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b35af72357dd7a40e3f4d878b05f21d99aee95ffa0b016465158723b4cd1e15. 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: 3b35af72357dd7a40e3f4d878b05f21d99aee95ffa0b016465158723b4cd1e15
SHA3-384 hash: 06e0f8462730b38443a6827381fe080a814f6600e5440d2698494e24642d40ccd845b4fa14385e394bbac64f21db654d
SHA1 hash: 665fbb42982e14992abb51eedbca71bb359807a6
MD5 hash: 3857e6e4367630f48b4ddbe63daed124
humanhash: uranus-nevada-beryllium-oranges
File name:GJRO7kgy6z57qTi.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'078'272 bytes
First seen:2022-07-26 11:02:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:Cw4UZvybcv8vojooNcpasTpuT11yxOEH:C6d8glN11ZEH
TLSH T10335AE9C355037DFC8A7D6B9CD64AE64EA603966830B9A07B01311DD9E4EBA3DF050E3
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon f0cce27272f2cef0 (6 x Formbook, 3 x NanoCore, 2 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
309
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/294260/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62dfc9b85c40cd8dc5ee4402/reports/992dee00-5b31-47f5-b117-2db75a42fbe1/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9a38519c-574b-4b0f-b999-72ef753b9baf
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1041001
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 673495 Sample: GJRO7kgy6z57qTi.exe Startdate: 26/07/2022 Architecture: WINDOWS Score: 100 34 www.housecleaningapex.com 2->34 36 housecleaningapex.com 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for URL or domain 2->40 42 Antivirus / Scanner detection for submitted sample 2->42 44 6 other signatures 2->44 10 GJRO7kgy6z57qTi.exe 3 2->10         started        signatures3 process4 file5 32 C:\Users\user\...behaviorgraphJRO7kgy6z57qTi.exe.log, ASCII 10->32 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 54 Injects a PE file into a foreign processes 10->54 14 GJRO7kgy6z57qTi.exe 10->14         started        17 GJRO7kgy6z57qTi.exe 10->17         started        19 GJRO7kgy6z57qTi.exe 10->19         started        signatures6 process7 signatures8 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 21 control.exe 14->21         started        24 explorer.exe 14->24 injected 26 autofmt.exe 14->26         started        process9 signatures10 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 28 cmd.exe 1 21->28         started        process11 process12 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3b35af72357dd7a40e3f4d878b05f21d99aee95ffa0b016465158723b4cd1e15/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-07-26 11:03:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hm2264rvpxl2idr7jwdywbpsdwm252k77ifqczdfcwdshngndykq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/220726-m5pdxacca5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks computer location settings
Blocklisted process makes network request
Xloader payload
Xloader
Unpacked files
SH256 hash:
603d5301ad65ee1cf6e4917210b68da9d03ae786b6ca261c96d41bf84b93d189
MD5 hash:
fc325391141114a6a3927705153f69a3
SHA1 hash:
b24ebe35d751dbfcc1581525ec2adf96d8352f4f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/6fc1bd9a-25fd-4881-b2f9-44beb9fbae6d/
Parent samples :
4ece28a4229d41e763203acb8c66af294e5461b01de2c4e25daddab193dfe554
62caaba34203175af55b13e862c3a185257dd2ca3d0727e88ff912d1a1829b32
d7afd3ad1e23e16cb3c91351ce752984c0753cdf201bf2bbd3f9383a5f0ca760
3b35af72357dd7a40e3f4d878b05f21d99aee95ffa0b016465158723b4cd1e15
620279f8e14ad756e7d8e1e4442096ec53b47a927a25679c27781f1d9788244c
416f6e84e0825f1dd9aa5e80205c8b5f357dd1fd5e30add9f8dc2607a5d3b0f4
SH256 hash:
39c2d879c57f07305ce60412dc8a88f02e51f1a14a06cc605768d1d7f5313807
MD5 hash:
db51fe170a9e5d6ec5429a2fbd9d0353
SHA1 hash:
e30a58125fc41322db6cf2ccb6a6d414ed379016
Link:
https://www.unpac.me/results/6fc1bd9a-25fd-4881-b2f9-44beb9fbae6d/
SH256 hash:
5fb9f3d42b15808763288a5eac6297700586c1f2075543f0b16dcf704fc7988c
MD5 hash:
17954a0f215954ab22b03cc2b49f19c6
SHA1 hash:
9d1b382da4bceb7de344c258bc6b5ac11772a750
Link:
https://www.unpac.me/results/6fc1bd9a-25fd-4881-b2f9-44beb9fbae6d/
SH256 hash:
9a1a00a9c01ec767a0c2e40f8823790b2c50612b494e5c7f8981035a435a1bec
MD5 hash:
7a67f30376534220d4acb0de4f22a0a8
SHA1 hash:
72b3850d8971f5c8e5435cf4dbc37460ed490f87
Link:
https://www.unpac.me/results/6fc1bd9a-25fd-4881-b2f9-44beb9fbae6d/
SH256 hash:
e74f2f203371427ed6328c96e1ed03671f49d628d906724bdfd491ce95de0017
MD5 hash:
184f4d58a36175859858782254e39d0c
SHA1 hash:
4211962a0de2e8e89aac42d01a8d178af1cb36da
Link:
https://www.unpac.me/results/6fc1bd9a-25fd-4881-b2f9-44beb9fbae6d/
SH256 hash:
3b35af72357dd7a40e3f4d878b05f21d99aee95ffa0b016465158723b4cd1e15
MD5 hash:
3857e6e4367630f48b4ddbe63daed124
SHA1 hash:
665fbb42982e14992abb51eedbca71bb359807a6
Link:
https://www.unpac.me/results/6fc1bd9a-25fd-4881-b2f9-44beb9fbae6d/
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/3b35af72357dd7a40e3f4d878b05f21d99aee95ffa0b016465158723b4cd1e15

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
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.

Malspam

Formbook

Executable exe 3b35af72357dd7a40e3f4d878b05f21d99aee95ffa0b016465158723b4cd1e15

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/294260/

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