MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03b8b680955c5827b5f80ace4afb923c2a5714cbe1b9ca579ab6f197b8826bc6. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 03b8b680955c5827b5f80ace4afb923c2a5714cbe1b9ca579ab6f197b8826bc6
SHA3-384 hash: f28e1d36bf97fb19877a78ca1eb3ffea9699ed0c11ae42bbc7af570937154befa9b4848082180ac5ea03c1d33d8fe28f
SHA1 hash: 80be9861fa9f10581fc77e0c4a1405dd5042365d
MD5 hash: 4f25ed58038558b2e83f18896b245791
humanhash: eight-music-island-texas
File name:Profoma Invoice.doc.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'015'808 bytes
First seen:2021-09-21 18:27:59 UTC
Last seen:2021-09-21 19:36:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'636 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 12288:/RboNugwGcc7MSD35DbpTg4NhG12rZzGC0TCI5:Zo5ZcRS7DJNYwrwC0Oa
Threatray 9'460 similar samples on MalwareBazaar
TLSH T1692568295D2682F7C7DEC63CD04C4FDEDA66ACC3BA954F1AC495FA82127760BE08845C
File icon (PE):PE icon
dhash icon d8d0a9ada59cc080 (4 x AgentTesla, 4 x RedLineStealer, 2 x Formbook)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
356
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Profoma Invoice.doc.exe
Verdict:
Malicious activity
Analysis date:
2021-09-21 18:31:24 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/53a75d06-5833-4ae8-a1d9-b45a49c7020b

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/189954/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1037-1.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d961034a-b845-4bea-98ae-0959385719de
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/855130
Signature
.NET source code contains very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
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
Self deletion via cmd delete
Sigma detected: Suspicious Double Extension
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 487561 Sample: Profoma Invoice.doc.exe Startdate: 21/09/2021 Architecture: WINDOWS Score: 100 31 www.transportesajusco.online 2->31 33 www.straightcorndinner.xyz 2->33 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for URL or domain 2->41 43 11 other signatures 2->43 10 Profoma Invoice.doc.exe 3 2->10         started        signatures3 process4 file5 29 C:\Users\user\...\Profoma Invoice.doc.exe.log, ASCII 10->29 dropped 55 Injects a PE file into a foreign processes 10->55 14 Profoma Invoice.doc.exe 10->14         started        17 Profoma Invoice.doc.exe 10->17         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 14->57 59 Maps a DLL or memory area into another process 14->59 61 Sample uses process hollowing technique 14->61 63 Queues an APC in another process (thread injection) 14->63 19 raserver.exe 14->19         started        22 explorer.exe 14->22 injected process9 dnsIp10 45 Self deletion via cmd delete 19->45 47 Modifies the context of a thread in another process (thread injection) 19->47 49 Maps a DLL or memory area into another process 19->49 51 Tries to detect virtualization through RDTSC time measurements 19->51 25 cmd.exe 1 19->25         started        35 www.greenmamba100.com 22->35 53 System process connects to network (likely due to code injection or exploit) 22->53 signatures11 process12 process13 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/03b8b680955c5827b5f80ace4afb923c2a5714cbe1b9ca579ab6f197b8826bc6/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-21 17:08:34 UTC
AV detection:
19 of 45 (42.22%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ao4lnaevlrmcpnpyblhev64shqvfofgl4g44uv42w3yzpoecnpda._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1771bccdd4c4fdc7d50d97ac10e5b1e0f980a4ff31233c59e9cfa17e9cd36a24
Formbook
1836e41307578c7d04069263ba049bb64348e13f1ce41798c7dfd6512334c8ed
Formbook
2fc82f206abb0d6d6b4d7a916be93b408ab78f848531917b3968b066a5a31023
Formbook
5c8f31380d956958134331ea55e63835fd16ca1f02f4c81672b69db70bc97ab8
Formbook
774c08451198a951fa73f9859b5e48c12c5df9214759e4717e56d92fb4c09d1e
Formbook
ab4676fc90e455da2127126bfbd1fd167328c79eda83f686ef71dd89266825f5
Formbook
b32448dbeec13e1eb23e55a57ffc06f9dfc8fd44687e19fc0be1c4fbabc10abb
Formbook
bf335484cc9fdfc68bda67acbe6eab1f65f0f7dd7043b3aff47b47201ca531c5
Formbook
f1540e89eeb7046cd265d37ef63a6d282a1ff8a89875193ae775582e74205594
Formbook
fc9f8f3e66f8ea09953b7b5eba261ff36eb9a78a5f92787eb879420ee3bad581
Formbook
+ 9'450 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:c2ue loader rat
Link:
https://tria.ge/reports/210921-w4b7maaca9/
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.heidevelop.xyz/c2ue/
Unpacked files
SH256 hash:
4fe5eccf2d183b9c91b135a9659155103c51b75cc28268407d735935383381e4
MD5 hash:
3b5dca5c0340a8ac46af819bae7eb71f
SHA1 hash:
ff288bc89fcef4be981bc620d5248db6d03d9090
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/0cef2544-e13b-4a8e-85f7-b14c500b89c8/
Parent samples :
f1540e89eeb7046cd265d37ef63a6d282a1ff8a89875193ae775582e74205594
bf335484cc9fdfc68bda67acbe6eab1f65f0f7dd7043b3aff47b47201ca531c5
fc9f8f3e66f8ea09953b7b5eba261ff36eb9a78a5f92787eb879420ee3bad581
03b8b680955c5827b5f80ace4afb923c2a5714cbe1b9ca579ab6f197b8826bc6
8d536146e57d878eea148bc98170d2f7cad77ea57f0fbefedf3f3c0dcce40ac5
ed4ba3559a925d94bd2917dd5d4247d84e904b1e8423c21e40a0b9efc7b295d6
c7e4871bd8e22a0dfd8116206cff6631ca4a91857df75017b890768da0730041
a109f0b9407728fef1b41d766e8228085ee04661156d84ef543777bf311f450b
9748d96e1143a06277d9cc3e9398d366fe3fa21c4316b8134462c42a0020fe87
bdf00456287e3b458420249732255abf583ab0d6b5eb263f45d6ff329abdde93
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/0cef2544-e13b-4a8e-85f7-b14c500b89c8/
SH256 hash:
d4d3957df490bc50d3973cb637fdfd89783c7d5ee80e8cd7b325f7a39d78ffc1
MD5 hash:
d4297deaf0aedbd31d79a954efedd192
SHA1 hash:
0a482893eec0c3814997d117e56726a71befa834
Link:
https://www.unpac.me/results/0cef2544-e13b-4a8e-85f7-b14c500b89c8/
SH256 hash:
03b8b680955c5827b5f80ace4afb923c2a5714cbe1b9ca579ab6f197b8826bc6
MD5 hash:
4f25ed58038558b2e83f18896b245791
SHA1 hash:
80be9861fa9f10581fc77e0c4a1405dd5042365d
Link:
https://www.unpac.me/results/0cef2544-e13b-4a8e-85f7-b14c500b89c8/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/03b8b680955c5827b5f80ace4afb923c2a5714cbe1b9ca579ab6f197b8826bc6

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:pe_imphash
Create hunting rule
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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/189954/

Comments