MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4ff98fa6eba586e41aa9004c4d97d16568fb6a8745a172f96d7a1188fbb0b0d. 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


RemcosRAT


Vendor detections: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4ff98fa6eba586e41aa9004c4d97d16568fb6a8745a172f96d7a1188fbb0b0d
SHA3-384 hash: 0e4f086135a993a468f9cce4d24f95a1a9149e0e7dad99ea80d83c73512388fab0040f60e9fa47446d60d3ab3f4a95aa
SHA1 hash: f5f6a35e80bcd65e1bd2e8fde7caccb677072508
MD5 hash: e1b4e2dc20661cdf4901ce59cc83ab5a
humanhash: tennessee-arkansas-speaker-skylark
File name:D_20221214_902195153_699008811600000.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'302'528 bytes
First seen:2022-12-29 17:17:48 UTC
Last seen:2022-12-29 18:29:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:ZGTgVIYbaGrMyMyzc5+bS7XjS2ljTrbmLPJN6wX54S4G3r5/oOi3bJhxVsWy:ZGT6IzGrfM3YbWjNlj6LP/L
Threatray 7'645 similar samples on MalwareBazaar
TLSH T16255CF1131B394A3F8D745B74020BACD1E3C7116A6D1E22739793A9462066BFFBD4FA2
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 224c963333864c22 (1 x AgentTesla, 1 x RemcosRAT)
Reporter Anonymous
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
185
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
D_20221214_902195153_699008811600000.exe
Verdict:
Malicious activity
Analysis date:
2022-12-29 17:19:35 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/220c2141-df7d-486e-bebf-4e89a33844d2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.GenericKDZ.94855.24607.28253.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63adcbcc40e878e3042111ad/reports/0ceece67-b329-48c2-bd36-3e2c6e6eb855/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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/694a7ff4-f689-44dc-88ed-23c083f5acd4
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1142814
Signature
C2 URLs / IPs found in malware configuration
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4ff98fa6eba586e41aa9004c4d97d16568fb6a8745a172f96d7a1188fbb0b0d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-12-14 09:54:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ut7zr6toxjmg4qnksacmjwl5czli7nviornbol4w26qrrd53bmgq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
4bd1f385e71c2b0c8bb27ce271cfd26c696e3049e3e92cd150ba62666bc6221f
RemcosRAT
592f15fec50eda79baadcb6bc5c4cb79de60e5bb285f20fb8e8927477495f065
RemcosRAT
7f89f38c1c2a3e42e7fe2d1c286816361fe77aa49d1d474de200df6eb2dbda81
RemcosRAT
9d724226a2a3c8676d4a58b64b636d9dcc178c1d40fcf321309afa14505cf285
RemcosRAT
a0a124777df35d015c84f61af9a8e4d0dba82120a30fa031b73b885a13d88214
RemcosRAT
ad87f3ad6fb14d2b79d7b7aac1b38bc04fd20757460da0f02cac139408df9969
RemcosRAT
e1eb708f47303b831f6eb0ddc846e21782e8f727dcb0088fcb997c3bf0d4dbd3
RemcosRAT
e68ebc948356b0560fee06f52939504005fd848a93ccc41b4840c1db318a5409
RemcosRAT
+ 7'635 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:2nd-host rat
Link:
https://tria.ge/reports/221229-vt9vgagg9s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Remcos
Malware Config
C2 Extraction:
eaidali101.ddns.net:6060
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4d690006-9ef8-4a8e-906b-b7b50a57f9e9
Unpacked files
SH256 hash:
303f0d6773074f1d8e7b350b5ca9a6696f38aed4b768c04d66da93e6e1030bd4
MD5 hash:
92d12d86adc90660fe237937666431a7
SHA1 hash:
fc0da306ca5a9d6b11fb8e5ef3e228182f802649
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/00ec71df-8040-43cb-afc1-10c309a2f8e1/
Parent samples :
35285d5b859dd9b900b3fa09955edb78f80e7c707f4d3c2afb8c23de379fb37b
b27423d7fe1e3ff9aaa24ddd0201535f7c2cfd3722e7e4ff0a71ff28b6504dc1
12050271ba333bbc55aca8540cb433b317c8b043fcc4f49e2013706f03834851
a5e3a5a5abe4d46785deadb6630c0df664155bc61400ccec33881adbee9604d7
a6352db3ea00691d158c0d6b5acf6f84fbb9dbb8f9584c6d722529acdf246eaa
ce371c5ca3163e9bbd957b31ad7aee83a7c3a467188968340d28a52cf2be0b40
c6c950ca8ee414fcb5d1d28227799a1eec9a277f73c7eb0403052563a9f80468
e395bd1544cb6f8eeacdaed668d95be91d479734a2aabe4b2c3e7b2ec5d0d316
a4ff98fa6eba586e41aa9004c4d97d16568fb6a8745a172f96d7a1188fbb0b0d
SH256 hash:
35cad145efd0b5b6396491150d2e307d4cb5e06d4f1b41aa310393c6dce520b9
MD5 hash:
56f8354a2e307e73243ff0056295fedd
SHA1 hash:
ed3257769ea438e1b5e86c3ef033e2deca86e239
Link:
https://www.unpac.me/results/00ec71df-8040-43cb-afc1-10c309a2f8e1/
SH256 hash:
cfd97ebcde82834d2093702e4507f5622b5beebd889425e970d1890ee3692808
MD5 hash:
c39e5eaa407e2c9f31d258b9e09e4ef8
SHA1 hash:
d0080f90dc8f221f9fea898b61b026d6ee173b86
Link:
https://www.unpac.me/results/00ec71df-8040-43cb-afc1-10c309a2f8e1/
SH256 hash:
7f89b91c411d25147b8e9839bf30521f20226915697c260e428df4b63c9be5db
MD5 hash:
b38dd1e671a7d044b94275d1fef083b0
SHA1 hash:
34473c734984a334707bce3157ea42bce945585b
Link:
https://www.unpac.me/results/00ec71df-8040-43cb-afc1-10c309a2f8e1/
SH256 hash:
340ba2312d5cdfc3d89f3f35f627187dcb406e5afea134bc76b04f52f4285df3
MD5 hash:
85f9290aa8900e9fd74b01ee23125706
SHA1 hash:
310eb5e4aea5471b74a6385f1da283b9d8e3d698
Link:
https://www.unpac.me/results/00ec71df-8040-43cb-afc1-10c309a2f8e1/
SH256 hash:
a4ff98fa6eba586e41aa9004c4d97d16568fb6a8745a172f96d7a1188fbb0b0d
MD5 hash:
e1b4e2dc20661cdf4901ce59cc83ab5a
SHA1 hash:
f5f6a35e80bcd65e1bd2e8fde7caccb677072508
Link:
https://www.unpac.me/results/00ec71df-8040-43cb-afc1-10c309a2f8e1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a4ff98fa6eba/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.91
Link:
https://yomi.yoroi.company/submissions/a4ff98fa6eba586e41aa9004c4d97d16568fb6a8745a172f96d7a1188fbb0b0d

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.

Malspam

RemcosRAT

Executable exe a4ff98fa6eba586e41aa9004c4d97d16568fb6a8745a172f96d7a1188fbb0b0d

(this sample)

  
Dropped by
RemcosRAT
  
Delivery method
Distributed via e-mail attachment

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