MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55901c2d5489d6ac5a0671971d29a31f4cdfa2e03d56e18c1585d78547a26396. 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


Bitter


Vendor detections: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 55901c2d5489d6ac5a0671971d29a31f4cdfa2e03d56e18c1585d78547a26396
SHA3-384 hash: 3940f374f76bc8f1b6767c859fff0a7acd9ae18b8de4f735b916a8925dfe9ca38a7dbbb55a33ba191691a3823155110c
SHA1 hash: bcc9e35c28430264575831e851182eca7219116f
MD5 hash: 71e1cfb5e5a515cea2c3537b78325abf
humanhash: georgia-delta-sweet-spring
File name:stdrcl.exe
Download: download sample
Signature Bitter
Create hunting rule
File size:15'360 bytes
First seen:2022-07-05 14:06:09 UTC
Last seen:2022-07-05 14:55:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'611 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 384:hpjfxKPDmQzm5dShcdxcslbRlyAvN3Wd7W:cDmQzbgxfdRlXvN6
TLSH T1C462491C7BFCA927D67EC7B458F2924503F4E6875912EF2D6CC4118A2CB37809622B67
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)
Reporter SI_FalconTeam
Tags:almondRAT apt Bitter exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
299
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
stdrcl_55901c2d5489d6ac5a0671971d29a31f4cdfa2e03d56e18c1585d78547a26396
Verdict:
Suspicious activity
Analysis date:
2022-06-15 09:56:31 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b25e85e2-c616-4c85-a033-46211730473d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILMamut.2150.619.8230.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware
Link:
https://www.filescan.io/uploads/62c4458b11764e36f817151d/reports/f90cd54c-7506-428e-acfa-5baf976407a1/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/1f5cdada-418f-4f08-a88f-b9086f74415b
Result
Threat name:
Unknown
Detection:
malicious
Classification:
n/a
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1010297
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/55901c2d5489d6ac5a0671971d29a31f4cdfa2e03d56e18c1585d78547a26396/
Threat name:
ByteCode-MSIL.Trojan.Mamut
Create hunting rule
Status:
Malicious
First seen:
2022-05-27 12:09:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
13 of 41 (31.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kwibylkurhlkywqgoglr2kndd5gn7ixahvloddavqxlykr5cmola._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/220705-rey8msbhb5/
Unpacked files
SH256 hash:
55901c2d5489d6ac5a0671971d29a31f4cdfa2e03d56e18c1585d78547a26396
MD5 hash:
71e1cfb5e5a515cea2c3537b78325abf
SHA1 hash:
bcc9e35c28430264575831e851182eca7219116f
Link:
https://www.unpac.me/results/c6298f9a-fc68-47a8-920c-ea87bd44da84/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Bitter RAT
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/55901c2d5489d6ac5a0671971d29a31f4cdfa2e03d56e18c1585d78547a26396

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:APT_Bitter_PDB_Paths
Create hunting rule
Author:SECUINFRA Falcon Team (@SI_FalconTeam)
Description:Detects Bitter (T-APT-17) PDB Paths
Reference:https://www.secuinfra.com/en/techtalk/whatever-floats-your-boat-bitter-apt-continues-to-target-bangladesh
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
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.

  
Link
https://www.secuinfra.com/en/techtalk/whatever-floats-your-boat-bitter-apt-continues-to-target-bangladesh/

Comments