MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1896f4eab7631eb5e0daa3a5a9a9787cbb5ebc2324f4823f96e3d565b4875e6. 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


Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1896f4eab7631eb5e0daa3a5a9a9787cbb5ebc2324f4823f96e3d565b4875e6
SHA3-384 hash: 6eb558ab5cadcb79aa041f9d48ceaad1aae7ecfa71360b1e75222f5496655bba922b0a3dd8acf7f2e6d0c4045375f624
SHA1 hash: 8d197928da75aa8d0764e01f36cb459c3e1eadb7
MD5 hash: 47df161e1176d3bf5dfcf7a56047dabb
humanhash: autumn-beer-failed-london
File name:Cease and Desist.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:689'152 bytes
First seen:2023-04-05 11:53:18 UTC
Last seen:2023-04-05 13:01:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:kARyvAgEok3Cg7cR7LS9ftAZ5bMvvB/19C+bg1eBm86iKe77lj0:kARyvXM9cRfS9UbMvJ6+bg1n5U7t0
Threatray 629 similar samples on MalwareBazaar
TLSH T117E4134433F44B35C9AE0BBED897220D43F0B95A3853F60E5DC2B6E41DE7B408995AA7
TrID 49.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
20.9% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.7% (.SCR) Windows screen saver (13097/50/3)
7.0% (.EXE) Win64 Executable (generic) (10523/12/4)
4.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon 00706dd050697000 (9 x AgentTesla, 5 x Loki, 4 x Formbook)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
234
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Cease and Desist.exe
Verdict:
Malicious activity
Analysis date:
2023-04-05 11:54:57 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/76cce14a-dc3d-462e-95a5-008d53f38017

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/380256/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/642d615b497fb6f23efd8901/reports/515279de-58b1-4997-bd9c-47de1c692178/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a1896f4eab7631eb5e0daa3a5a9a9787cbb5ebc2324f4823f96e3d565b4875e6
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3d2bb7fc-6b11-446d-a3c9-dd201e37d0d3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1208775
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Deletes itself after installation
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 841691 Sample: Cease_and_Desist.exe Startdate: 05/04/2023 Architecture: WINDOWS Score: 100 32 Snort IDS alert for network traffic 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus detection for URL or domain 2->36 38 3 other signatures 2->38 8 Cease_and_Desist.exe 3 2->8         started        process3 file4 24 C:\Users\user\...\Cease_and_Desist.exe.log, ASCII 8->24 dropped 52 Injects a PE file into a foreign processes 8->52 12 Cease_and_Desist.exe 8->12         started        15 Cease_and_Desist.exe 8->15         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 12->54 56 Maps a DLL or memory area into another process 12->56 58 Sample uses process hollowing technique 12->58 60 Queues an APC in another process (thread injection) 12->60 17 explorer.exe 4 1 12->17 injected process8 dnsIp9 26 kaj8tfjcmkn7.xyz 216.18.208.202, 49707, 49708, 49736 WEBNXUS United States 17->26 28 fabricadepack.fun 69.49.241.120, 49721, 49722, 80 UNIFIEDLAYER-AS-1US United States 17->28 30 24 other IPs or domains 17->30 40 System process connects to network (likely due to code injection or exploit) 17->40 42 Performs DNS queries to domains with low reputation 17->42 21 rundll32.exe 13 17->21         started        signatures10 process11 signatures12 44 Tries to steal Mail credentials (via file / registry access) 21->44 46 Tries to harvest and steal browser information (history, passwords, etc) 21->46 48 Deletes itself after installation 21->48 50 2 other signatures 21->50
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a1896f4eab7631eb5e0daa3a5a9a9787cbb5ebc2324f4823f96e3d565b4875e6/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-04-05 08:02:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ugew6tvloyy6wxqnvi5fvguxq7f3l26cgjhuqi7zny6vmw2ioxta._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
00330ca48a13a195fb80bcaba66fee393bba1821b65bd89cc1349687a99cfa55
Formbook
341db7699f4f2349d2cec4a85f09a899b322268b811d722aa9da9e035c0db874
Formbook
50e39da793e84dc45780be3dca5aed8fa300ae2aaf7708a58da92e31865f2e81
Formbook
7083c8ed81099db6c891014f96b0a56b880ac92bcdc9c681869f74594c3a3a7b
Formbook
89a1bcbf5cbf06ae932e2c7fe045436200ef03336d4df4202b359c477f08acab
Formbook
9c9f18ea63037d0eedabba89626fef34946df41219c3f7ff9669b8bef92ab879
Formbook
aec9db4b3d08cfbfb3731dd3ad74d19678393c35ce00655ad99ee7a2e8f0d447
Formbook
da9da68aedd7dfc3cb324b9c91c2e0ce75ecb7abc0283b1aea395022f277978f
Formbook
ec6cebe1ace02965184a065528322e6b881abc1930d87223cfeafac4204c0bbc
Formbook
f0e160fc8c0dacffdd789b3a91933fd9c3d629077d25e29a4f69217220689374
Formbook
+ 619 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230405-n2vxysed79/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Gathers network information
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Unpacked files
SH256 hash:
36e9433fcfc24f9e553b1b7b260cd5819ee24ec3cfe6f1711c45d9ed39e0ac57
MD5 hash:
6044c416016ff29afbd44834d7769559
SHA1 hash:
623bc8ad49e7bcf7a9b442748a14f2067e37dfb5
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/efa0544e-078c-428d-969b-340ffeb15819/
Parent samples :
91220ea3c0c0c29ff200847c1b57713f299e74c789cedaf4f0008981203f2995
74918059a600f724964e71c9c698e6d46090248c16f29909a9de9a8b290af4a8
c117bb5751dbaee9a3036d8481ede0d8f2b0049a1819d9cb61a8310d2e6fea5b
a1896f4eab7631eb5e0daa3a5a9a9787cbb5ebc2324f4823f96e3d565b4875e6
34da43dd685ff44693360ea3feb0aba8946f7844a7711ed297533e51c2a7ec90
SH256 hash:
7f1b882abcd8ae0854e55a31279380811470baed89161a5625c9ffb255edd1b2
MD5 hash:
40c407b2357867ced0bed9cd7358a14d
SHA1 hash:
549b085b96e3c68884d72d664afec370dcee5686
Link:
https://www.unpac.me/results/efa0544e-078c-428d-969b-340ffeb15819/
SH256 hash:
a74604f9e59872b451e8009d0c33a0dca1cd0fe185b39ec1c613f33f45137165
MD5 hash:
f46accf8d4e010a25282826c2fab2adc
SHA1 hash:
f5b461ee96321bbb23c2459f522a3877c95e0945
Link:
https://www.unpac.me/results/efa0544e-078c-428d-969b-340ffeb15819/
SH256 hash:
acc1325cfe758c13f7f612db57a4eeef7588f84d4a038735d84f8320e6ff9568
MD5 hash:
1dde8c1ba533abd5581ec7afa06dcddd
SHA1 hash:
93deb055441c88492ca7c0b6ebd6ec053b9e524e
Link:
https://www.unpac.me/results/efa0544e-078c-428d-969b-340ffeb15819/
SH256 hash:
3c507afadbb1c31a9ebdd24baac5739d47576159e01c5e84f973c951885100aa
MD5 hash:
e79bf0e7e9d52d398e0b23b352394c68
SHA1 hash:
682325763a0ec77e0fd475ea3a4021b4651eceac
Link:
https://www.unpac.me/results/efa0544e-078c-428d-969b-340ffeb15819/
SH256 hash:
ae09f69ae1f8064255a4cc374070d4a882a3abba00639ee1c206eed3f2982e98
MD5 hash:
c75f4fc5f57dcfda371b334c7baa78b0
SHA1 hash:
608bea0ef153549552916b3089ac2b7334b07464
Link:
https://www.unpac.me/results/efa0544e-078c-428d-969b-340ffeb15819/
SH256 hash:
a1896f4eab7631eb5e0daa3a5a9a9787cbb5ebc2324f4823f96e3d565b4875e6
MD5 hash:
47df161e1176d3bf5dfcf7a56047dabb
SHA1 hash:
8d197928da75aa8d0764e01f36cb459c3e1eadb7
Link:
https://www.unpac.me/results/efa0544e-078c-428d-969b-340ffeb15819/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a1896f4eab76/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a1896f4eab7631eb5e0daa3a5a9a9787cbb5ebc2324f4823f96e3d565b4875e6

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
Rule name:Suspicious_Macro_Presence
Create hunting rule
Author:Mehmet Ali Kerimoglu (CYB3RMX)
Description:This rule detects common malicious/suspicious implementations.

File information

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

Malspam

Formbook

Executable exe a1896f4eab7631eb5e0daa3a5a9a9787cbb5ebc2324f4823f96e3d565b4875e6

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/380256/

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