MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1a705cc5dadd4aece01bedec08657b96398d09e610d99cd14f0896825d70d09. 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


Cutwail


Vendor detections: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1a705cc5dadd4aece01bedec08657b96398d09e610d99cd14f0896825d70d09
SHA3-384 hash: 46b6fa7d8d4777d1bca5d1e09e32fd1ae1640a11969e76a2b06c0e37521215f58e5b928a2b7fcf4e25c47868a6d89e30
SHA1 hash: bdeb02c27daf804f8fad93106f31ca0f197b4b78
MD5 hash: 0a186fa4a91ce443a5a3d0e78cc3fecd
humanhash: golf-april-mississippi-whiskey
File name:0a186fa4a91ce443a5a3d0e78cc3fecd.exe
Download: download sample
Signature Cutwail
Create hunting rule
File size:288'256 bytes
First seen:2023-01-11 15:57:01 UTC
Last seen:2023-01-11 17:32:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1170972bab2bb311af28ba139b2b33a2 (1 x Cutwail)
ssdeep 3072:h5QPa45Ov1oO37aoZ72yqvUlgr2W4R5LsvfB1m9k5ayy7ND4L5+TDbwfSSSSSSzi:LQJ0f37HqvsW4RivfB0F163/S8aF9Z9
Threatray 14 similar samples on MalwareBazaar
TLSH T10B548D30EA90C038F4F755F449B967BC642D7EA0877884CF52D956EA92346E8EE30753
TrID 39.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.5% (.SCR) Windows screen saver (13097/50/3)
13.3% (.EXE) Win64 Executable (generic) (10523/12/4)
8.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:Cutwail exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
199
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
smoke
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-01-11 08:50:26 UTC
Tags:
trojan loader smoke sinkhole
Link:
https://app.any.run/tasks/7fadd677-dc59-4d0b-ac86-be601bc22906

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/352001/
Detection(s):
SecuriteInfo.com.Win32.Trojan-gen.10952.28766.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Creating a file
Enabling the 'hidden' option for recently created files
DNS request
Sending an HTTP POST request
Launching a process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Sending an HTTP POST request to an infection source
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/63bedc515f356e00329d27c8/reports/8d64bad8-ce80-4f11-94da-3eef82d472e3/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:
Cutwail
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f543e19d-5339-4e75-816c-5ebb0a308bcd
Result
Threat name:
Pushdo
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1149714
Signature
Antivirus detection for URL or domain
Contains functionality to compare user and computer (likely to detect sandboxes)
Contains functionality to inject code into remote processes
Contains functionality to inject threads in other processes
Drops PE files to the user root directory
Found stalling execution ending in API Sleep call
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to resolve many domain names, but no domain seems valid
Writes to foreign memory regions
Yara detected Backdoor Pushdo
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 782450 Sample: 1EsDtA4mep.exe Startdate: 11/01/2023 Architecture: WINDOWS Score: 100 45 www.sclover3.com 2->45 47 www.reglera.com 2->47 49 220 other IPs or domains 2->49 75 Snort IDS alert for network traffic 2->75 77 Antivirus detection for URL or domain 2->77 79 Multi AV Scanner detection for submitted file 2->79 83 2 other signatures 2->83 8 1EsDtA4mep.exe 3 68 2->8         started        13 pigalicapi.exe 48 2->13         started        15 pigalicapi.exe 48 2->15         started        signatures3 81 Tries to resolve many domain names, but no domain seems valid 47->81 process4 dnsIp5 51 mackusick.com 8->51 53 www.jenco.co.uk 104.21.23.9, 49697, 49773, 49818 CLOUDFLARENETUS United States 8->53 59 191 other IPs or domains 8->59 29 C:\Users\user\pigalicapi.exe, PE32 8->29 dropped 31 C:\Users\...\pigalicapi.exe:Zone.Identifier, ASCII 8->31 dropped 85 Contains functionality to inject threads in other processes 8->85 87 Drops PE files to the user root directory 8->87 89 Contains functionality to inject code into remote processes 8->89 99 3 other signatures 8->99 17 svchost.exe 8->17         started        55 www.dayvo.com 188.114.96.3, 25, 443, 49779 CLOUDFLARENETUS European Union 13->55 61 132 other IPs or domains 13->61 91 Multi AV Scanner detection for dropped file 13->91 93 Machine Learning detection for dropped file 13->93 95 Found stalling execution ending in API Sleep call 13->95 21 svchost.exe 13->21         started        57 www.tc17.com 15->57 63 120 other IPs or domains 15->63 23 svchost.exe 15->23         started        file6 97 System process connects to network (likely due to code injection or exploit) 57->97 signatures7 process8 dnsIp9 33 smtp1.sbc.mail.am0.yahoodns.net 66.218.88.163, 25, 49929, 50043 YAHOO-3US United States 17->33 35 smtp.sbcglobal.yahoo.com 17->35 41 2 other IPs or domains 17->41 71 System process connects to network (likely due to code injection or exploit) 17->71 73 Injects a PE file into a foreign processes 17->73 25 svchost.exe 12 17->25         started        37 185.205.70.128, 25, 50051 DEVINOTELECOM-ASRU unknown 21->37 39 mail.airmail.net 66.226.70.66, 25, 50085, 65188 INFB2-ASUS United States 21->39 43 2 other IPs or domains 21->43 signatures10 process11 dnsIp12 65 nts-web.net 25->65 67 flamingorecordings.com 25->67 69 37 other IPs or domains 25->69 101 System process connects to network (likely due to code injection or exploit) 25->101 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b1a705cc5dadd4aece01bedec08657b96398d09e610d99cd14f0896825d70d09/
Threat name:
Win32.Trojan.Cutwail
Create hunting rule
Status:
Malicious
First seen:
2023-01-11 10:26:28 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wgtqltc5vxkk5tqbx3pmbbsxxfrzrue6megzttiu6cewqjoxbueq._file
Verdict:
malicious
Similar samples:
02fe1e05ca2f07215863e2a1fb3b5a00964ed07ffa2ddee45cf6ee8af10aff90
Cutwail
095a3f84debd7481b880016a770c211a793847f61c72499b4702b16fd9666b28
Cutwail
181e69353ba4190572b8ab171545452cf9ad4dac32c0c2c2c6716853fc604c88
Cutwail
3506cb5aede37423e0c1542075d889ce8884edcc9bd7031a7fe54211d43e36c1
Cutwail
74b4a1409e686d9b8743ba282776b5498084cd4cecc1e10f1d2fde3ee5f3f401
Cutwail
9933468292efeb6b2c9d2c8e36bbe818aebe7e46eeb6d7e25a8299b4e90f3ab6
Cutwail
b392f2d4ca451b9b125219b6b4f17d491b76e5dc464cfe47f4963ba356db961f
Cutwail
dfde4df8173b90daa38575d60c96bfc157e045a04e16e46bf073a64fdfd1285e
Cutwail
+ 4 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence upx
Link:
https://tria.ge/reports/230111-tdxdrshc7s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
UPX packed file
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a5dd254c-9b3b-4cc9-bdd8-6ba003996b47
Unpacked files
SH256 hash:
1c7b41be9c64b57aacb0c640ec73d53c8f0bf8975f5c6601d98d92c25b5968af
MD5 hash:
d0f5a79ecbbe532696a85162f08a63f9
SHA1 hash:
e259bcf1f84f3e771e60c73a28d13ae43b96d949
Detections:
win_pushdo_auto
Create hunting rule
Link:
https://www.unpac.me/results/cac7c82c-6b8b-45c3-a0e9-01a9144b8684/
SH256 hash:
fdc68ffd0e5cb3f319eddf083c7e5774ed74a4f86acf212e35ff0dc4f4e91a3c
MD5 hash:
8b3b037e6ba76e4aae95355902278a63
SHA1 hash:
ae607d9392f93b035363f57b90719f058cd69a0a
Detections:
win_pushdo_auto
Create hunting rule
Link:
https://www.unpac.me/results/cac7c82c-6b8b-45c3-a0e9-01a9144b8684/
Parent samples :
b392f2d4ca451b9b125219b6b4f17d491b76e5dc464cfe47f4963ba356db961f
c0183ded48b43c6bebca6093caf1d8d5a85f7c651aeb6caf86e55819d14238ba
b1a705cc5dadd4aece01bedec08657b96398d09e610d99cd14f0896825d70d09
6618359d4d19997728359453b0598be7562c293ef9d6ac51f2635586096a52bd
987204ca82337f0a3f28097a5d66d5f3ecb11d43d82f67cd753d0bf2ce40b7a7
f8ef3e3b18e72eebb4b18edbc90f7f5851ab0af044473fa2856fc974f0c33d6c
7c2906c9277e39c2d1be87adbd342e6faba7b0aa593233663d0007cb4119ccc6
SH256 hash:
f812cff25ac78391ad0621231aa8556d459a3cea3205a04b097744f1e0116a60
MD5 hash:
ab0fa68fdf4a67b3a404250f073e15ba
SHA1 hash:
7eb499acfbe7a3d4d536ab2de8e95be4d7234bbf
Link:
https://www.unpac.me/results/cac7c82c-6b8b-45c3-a0e9-01a9144b8684/
SH256 hash:
b1a705cc5dadd4aece01bedec08657b96398d09e610d99cd14f0896825d70d09
MD5 hash:
0a186fa4a91ce443a5a3d0e78cc3fecd
SHA1 hash:
bdeb02c27daf804f8fad93106f31ca0f197b4b78
Link:
https://www.unpac.me/results/cac7c82c-6b8b-45c3-a0e9-01a9144b8684/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b1a705cc5dad/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Cutwail
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/b1a705cc5dadd4aece01bedec08657b96398d09e610d99cd14f0896825d70d09

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:win_pushdo_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.pushdo.

File information

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

Web download

Cutwail

Executable exe b1a705cc5dadd4aece01bedec08657b96398d09e610d99cd14f0896825d70d09

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2504529/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/352001/

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