MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8776b137f7c04fd40d7b3739011710eedbfe4472e013904300ca6ebc93a3c37. 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


MassLogger


Vendor detections: 9


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f8776b137f7c04fd40d7b3739011710eedbfe4472e013904300ca6ebc93a3c37
SHA3-384 hash: 416602bff8f018e31d7e7f7d03d87e45aa05a1eb541ab8414a267f18f3a86a5b4428fa3fafb74d93b124259def705c25
SHA1 hash: 007ae207d32c87b46987dab514c711a0dd10268d
MD5 hash: 124d902b62e2b9fd6f8d27d47c884e59
humanhash: august-oven-twenty-michigan
File name:2735727783652917237.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:811'520 bytes
First seen:2020-10-20 08:32:51 UTC
Last seen:2020-10-20 09:45:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'603 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:dQFhKRJ1biIcsVrqZStsU3PfC08IFo0ZhA1GUKzodQ:uemsVrqissHCTWANKzo
Threatray 419 similar samples on MalwareBazaar
TLSH 070512406296AB32F5BE87F5212C1518D3F2245E7BA2F7684EE137FB5964B804F18E43
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: jtekt.com.cn
Sending IP: 156.96.62.59
From: kuang_xiaoqi <kuang_xiaoqi@jtekt.com.cn>
Subject: 回复: Order Confirmation
Attachment: 2735727783652917237.r00 (contains "2735727783652917237.exe")

MassLogger SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/73352/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Setting a global event handler for the keyboard
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/497377
Signature
Binary contains a suspicious time stamp
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AntiVM_3
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f8776b137f7c04fd40d7b3739011710eedbfe4472e013904300ca6ebc93a3c37/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2020-10-20 03:34:13 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7b3wwe37pqcp2qgxwnzzaelrb3w37zchfyatsbbqbstoxsj2hq3q._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
Similar samples:
08c7131cac4c6c62004d8b2e3ce0b85d1b35e7325f753a865206814cd87ecdf4
MassLogger
08d49c14a81bc6b95397e6c0adc1efa3325fd00cd3ba6c7083353f7d93be1429
MassLogger
25f48722bf24e935d7bdca104b416f87424ced29dfec2fbebc817725f09af5f1
MassLogger
52610d8b6b7199cca5c5bb423edc65f316e8ab960774aa7348490899c125bcaf
MassLogger
5dd8cf7e789bc36a9a069cf42247f758e8900f8913c88e5ac84328d30e6d7c99
MassLogger
88e157995a6f79f670bad1611fdba6514152bb1f2682e0dbc28c3e9291b8c221
MassLogger
ce073fce9de335c288fe205d5bf7fbdd9fd3ecc718821116dbad098f176a69de
MassLogger
d8aebda89bb5717256e78b44dd9e9ef54179d3590f7a6125da452e877c083c48
MassLogger
e1392a3d2fb4e8f4642bac6694948fc8ceeb970fc5acce7c04b4d97352122be8
MassLogger
e576e88eba32ee86d13bd2d490595abe936b78955d193d5523f0f5ad23c5ec9c
MassLogger
+ 409 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
spyware stealer family:masslogger
Link:
https://tria.ge/reports/201020-t4gce3dbpe/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of web browsers
MassLogger
MassLogger Main Payload
Unpacked files
SH256 hash:
f8776b137f7c04fd40d7b3739011710eedbfe4472e013904300ca6ebc93a3c37
MD5 hash:
124d902b62e2b9fd6f8d27d47c884e59
SHA1 hash:
007ae207d32c87b46987dab514c711a0dd10268d
Link:
https://www.unpac.me/results/6de430a8-c399-4b2b-a58c-0f5997cea8bb/
SH256 hash:
31ce938626ccfb399fe1696710caf46d7ae9eb598b9d7d2aad719b594658469b
MD5 hash:
0aebe46040ceb011e78506d4985fe3de
SHA1 hash:
218ac1e7b14a66c604ec3042f8486bed9cd4c2c1
Link:
https://www.unpac.me/results/6de430a8-c399-4b2b-a58c-0f5997cea8bb/
SH256 hash:
be7c5ca09c8c83861d9aad663f81d98eb7eca073b8516ae5ee64ada72e77241d
MD5 hash:
7299b8a09314c745e527da9bf7c0b29d
SHA1 hash:
d804281a63d9ea25e3a9345344f044155af40d6b
Detections:
win_masslogger_w0
Create hunting rule
Link:
https://www.unpac.me/results/6de430a8-c399-4b2b-a58c-0f5997cea8bb/
Parent samples :
d8aebda89bb5717256e78b44dd9e9ef54179d3590f7a6125da452e877c083c48
e576e88eba32ee86d13bd2d490595abe936b78955d193d5523f0f5ad23c5ec9c
08c7131cac4c6c62004d8b2e3ce0b85d1b35e7325f753a865206814cd87ecdf4
e1392a3d2fb4e8f4642bac6694948fc8ceeb970fc5acce7c04b4d97352122be8
25f48722bf24e935d7bdca104b416f87424ced29dfec2fbebc817725f09af5f1
f8776b137f7c04fd40d7b3739011710eedbfe4472e013904300ca6ebc93a3c37
SH256 hash:
8b378639f3d0d6d776e3c9f914418f43ad9b04a252b9b22a23b9efe10d592b2c
MD5 hash:
926217674544b2609cca8cabcfd38554
SHA1 hash:
eb5b8ee8141939da462e982567ed188a2d305bf6
Link:
https://www.unpac.me/results/6de430a8-c399-4b2b-a58c-0f5997cea8bb/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f8776b137f7c04fd40d7b3739011710eedbfe4472e013904300ca6ebc93a3c37

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:MassLogger
Create hunting rule
Author:kevoreilly
Description:MassLogger
Rule name:masslogger_gcch
Create hunting rule
Author:govcert_ch
Rule name:win_masslogger_w0
Create hunting rule
Author:govcert_ch

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

MassLogger

r00 7818e1826cadd824eea8e2a99d3c24addbb99c932930e70e4b07d58b6cbffcf7

MassLogger

Executable exe f8776b137f7c04fd40d7b3739011710eedbfe4472e013904300ca6ebc93a3c37

(this sample)

  
Dropped by
MD5 08adf16eeafdcf8f7a7764df869cc558
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/73352/
  
Dropped by
SHA256 7818e1826cadd824eea8e2a99d3c24addbb99c932930e70e4b07d58b6cbffcf7

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