MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4bd358aa9e15948a2713549f109f65124e5911aefa709e921da094aac16a163. 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

Floxif

Vendor detections: 8

Intelligence 8 IOCs YARA 4 File information Comments

SHA256 hash:	c4bd358aa9e15948a2713549f109f65124e5911aefa709e921da094aac16a163
SHA3-384 hash:	a6821bcb63fa559ef901b42118026208c543028724e34c80b1872beefe90cba74b9c30a763c105f8b5712537f398afb4
SHA1 hash:	08016aa5843e206cc757a03b1b9f1eb555b71fce
MD5 hash:	190891c13990b5c20562239adbd15415
humanhash:	november-virginia-twelve-saturn
File name:	Req#422722.exe
Download:	download sample
Signature	Floxif Create hunting rule
File size:	834'560 bytes
First seen:	2021-04-06 08:17:43 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	12288:YC6pOC4ZvPE6L/hNPwjVOwAT5LdSzDEzi/sodir/wwM3FP6Zzrfi1Bxm7zxHecX9:Yxp+JPE6VBqetdWDAgdiwwoOLi1H0xz
Threatray	44 similar samples on MalwareBazaar
TLSH	C905E022279CDFB5E67EDB7D5424100043F1F707E326EA5E7DE650CD0AAAB458A62B03
Reporter	abuse_ch
Tags:	exe Floxif

abuse_ch

Malspam distributing unidentified malware:

HELO: relay-bulk2.stackmail.com
Sending IP: 185.151.28.79
From: Sharon Namayanja<jamshed@dreamnw.com>
Reply-To: Sharon Namayanja<xyris.choii@gmail.com>
Subject: RE: QUOTE
Attachment: Req422722.r00 (contains "Req#422722.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

173

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Req#422722.exe

Verdict:

Malicious activity

Analysis date:

2021-04-06 08:52:25 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/5c71c692-946e-4c0b-9a13-f178bf6dba9f

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/132621/

Detection(s):

SecuriteInfo.com.Variant.Bulz.421101.14465.17675.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

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.

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/667357

Signature

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Sigma detected: Scheduled temp file as task from temp location

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected AgentTesla

Yara detected AntiVM3

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/c4bd358aa9e15948a2713549f109f65124e5911aefa709e921da094aac16a163/

Threat name:

Win32.Trojan.Wacatac

Status:

Malicious

First seen:

2021-04-05 23:45:20 UTC

AV detection:

9 of 48 (18.75%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ys6tlcvj4fmuritrgve7ccpwkesolei256tqt2jb3ieuvlawufrq._file

Verdict:

suspicious

Result

Malware family:

n/a

Score:

5/10

Tags:

n/a

Link:

https://tria.ge/reports/210406-km5k914v6e/

Behaviour

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Program crash

Suspicious use of SetThreadContext

Unpacked files

SH256 hash:

6590b9ec4fa84e44c372fda26f47d6d58859d74869621c6bdd4086e6ae411379

MD5 hash:

95dfa1a9015a17a1d49b4faa3f3d999d

SHA1 hash:

427b72727b28436554d0443d797f19b2ea37cc16

Link:

https://www.unpac.me/results/bdeca4dd-ed1e-44ef-84f8-91ab371744c1/

SH256 hash:

c4bd358aa9e15948a2713549f109f65124e5911aefa709e921da094aac16a163

MD5 hash:

190891c13990b5c20562239adbd15415

SHA1 hash:

08016aa5843e206cc757a03b1b9f1eb555b71fce

Link:

https://www.unpac.me/results/bdeca4dd-ed1e-44ef-84f8-91ab371744c1/

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

AgentTesla

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/c4bd358aa9e15948a2713549f109f65124e5911aefa709e921da094aac16a163

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:	Malware_Floxif_mpsvc_dll Create hunting rule
Author:	Florian Roth
Description:	Malware - Floxif
Reference:	Internal Research

Rule name:	MAL_Neshta_Mar20_1 Create hunting rule
Author:	Florian Roth
Description:	Detects Neshta malware
Reference:	Internal Research

Rule name:	win_neshta_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator

Rule name:	win_neshta_g0 Create hunting rule
Author:	gpalazolo
Description:	This rule identifies Neshta Malware.
Reference:	https://www.virusbulletin.com/virusbulletin/2014/08/bird-s-nest