MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6eafced8bff8b3551777975d1f71948eb04c4490fb2e165687f77f5182dc9a23. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
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SHA256 hash: 6eafced8bff8b3551777975d1f71948eb04c4490fb2e165687f77f5182dc9a23
SHA3-384 hash: dcf6eed62e8c35efc4d71717f8a20c1f285b2fabcf1fbc793809ded1127090658702279e6f335175642d373657b74412
SHA1 hash: 5696916971ac41d6cf0dbd5622f6ddd77fb7822d
MD5 hash: 6de8cc7ae71db27b0b6817e99ab668f1
humanhash: lamp-thirteen-rugby-river
File name:cvOs6PJEQvWTZzf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:861'184 bytes
First seen:2022-11-05 00:17:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:myLB2Gc4SneWRgw4QGS8akq6Rfs2sFLTAehm8buS89W:yn46NG3QGAkx8TAqbD
TLSH T10D05E00F8BE6461ED66D36B855F0EAF76799DC00F80BC35B16C56E5FB8032209252BC9
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13097/50/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
224
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
cvOs6PJEQvWTZzf.exe
Verdict:
Malicious activity
Analysis date:
2022-11-05 00:19:00 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/519e119d-2478-4647-b4aa-6f7ae582f12d

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/328861/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.46272.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Creating a window
Launching a process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/6365abbb775605b3a4f39f74/reports/52749830-352c-4295-8766-7dc1633a1de6/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:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9d891a77-eba8-4dd3-8407-3e480172437c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1105882
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Deletes itself after installation
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 738546 Sample: cvOs6PJEQvWTZzf.exe Startdate: 05/11/2022 Architecture: WINDOWS Score: 100 27 www.ocoochmountainsmoke.net 2->27 35 Snort IDS alert for network traffic 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for URL or domain 2->39 41 7 other signatures 2->41 9 cvOs6PJEQvWTZzf.exe 3 2->9         started        signatures3 process4 file5 25 C:\Users\user\...\cvOs6PJEQvWTZzf.exe.log, ASCII 9->25 dropped 55 Injects a PE file into a foreign processes 9->55 13 cvOs6PJEQvWTZzf.exe 9->13         started        16 cvOs6PJEQvWTZzf.exe 9->16         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 13->57 59 Maps a DLL or memory area into another process 13->59 61 Sample uses process hollowing technique 13->61 63 Queues an APC in another process (thread injection) 13->63 18 explorer.exe 13->18 injected process9 dnsIp10 29 www.takano-kk.net 103.141.97.43, 49700, 49701, 80 VECTANTARTERIANetworksCorporationJP Japan 18->29 31 www.uaemetaversesummit.org 91.195.240.94, 49696, 49697, 80 SEDO-ASDE Germany 18->31 33 4 other IPs or domains 18->33 43 System process connects to network (likely due to code injection or exploit) 18->43 45 Performs DNS queries to domains with low reputation 18->45 22 cscript.exe 13 18->22         started        signatures11 process12 signatures13 47 Tries to steal Mail credentials (via file / registry access) 22->47 49 Tries to harvest and steal browser information (history, passwords, etc) 22->49 51 Deletes itself after installation 22->51 53 2 other signatures 22->53
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6eafced8bff8b3551777975d1f71948eb04c4490fb2e165687f77f5182dc9a23/
Threat name:
ByteCode-MSIL.Spyware.SnakeLogger
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Status:
Malicious
First seen:
2022-11-04 02:53:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
16 of 26 (61.54%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=n2x45wf77czvkf3xs5or64mur2yeyreq7mxbmvuh657vdaw4tirq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:mtbj rat spyware stealer trojan
Link:
https://tria.ge/reports/221105-all38aebdp/
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
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e2d5eb55-e967-4130-a6bd-d2e3e1d02ff9
Unpacked files
SH256 hash:
9a6794615b3b19f8430ac3ab1f7b80f32f55212e0ccf99972876415e353ebec1
MD5 hash:
9ef10a781c5d5180e6dc01ca15e5a93f
SHA1 hash:
38aac92d01ff684e92f815e5f262d8683e1f00c8
Detections:
XLoader
Create hunting rule
win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/e92b939f-4ec4-455b-8906-3a47805f3824/
Parent samples :
6eafced8bff8b3551777975d1f71948eb04c4490fb2e165687f77f5182dc9a23
2a1636ce0a135a44f0ca3b7a0b2f9ad5f2c681629714640dd99fb4452718f63d
8a44adde0f3cad02f2cfd6f4694a8e4455acd991bbe25520cf6bafe0839ed09c
SH256 hash:
05adb54d01de743caeedda1c7cba2b856812ac5d30795d9ae79538c327087180
MD5 hash:
58c069966b25c7f5ada9044325a82c39
SHA1 hash:
8336b647bd774147a6af1954003e85544e1b5d20
Link:
https://www.unpac.me/results/e92b939f-4ec4-455b-8906-3a47805f3824/
SH256 hash:
6433269b18af7648890806d1f66f91cd42db0ccf827a22547cf0ff894846aa7c
MD5 hash:
15d6a417a5a70bb4d4459fa4d2332db0
SHA1 hash:
c37d6dfbc1dd2554ccfe4d6e497bc5cddfdd0354
Link:
https://www.unpac.me/results/e92b939f-4ec4-455b-8906-3a47805f3824/
SH256 hash:
9317ebca6206fae04715474d773d2fc23d04739d5ae73b4872b56303d4a41a5c
MD5 hash:
96c9fc22b2c2241f07e44900ae835a68
SHA1 hash:
5222a69995926c86f6f2d02be3fe18506d41cb0c
Link:
https://www.unpac.me/results/e92b939f-4ec4-455b-8906-3a47805f3824/
SH256 hash:
744928a56b4d36f17e73eea0534c5e99103d1553d5b0a864a6fd9d4f9899b47f
MD5 hash:
91fed5db1afcdf48e0cd6d4058a013ba
SHA1 hash:
3717b3346e25d3f66f00626ad1a771d8655f485f
Link:
https://www.unpac.me/results/e92b939f-4ec4-455b-8906-3a47805f3824/
SH256 hash:
863837dcd8e333d2e231406432f49815caff561d6e7ab3f54af92f014f37e7b2
MD5 hash:
16683d575d9dd283d63355832ce050ea
SHA1 hash:
0189fdea1827c2699d736cc343b28888a74f57c4
Link:
https://www.unpac.me/results/e92b939f-4ec4-455b-8906-3a47805f3824/
SH256 hash:
6eafced8bff8b3551777975d1f71948eb04c4490fb2e165687f77f5182dc9a23
MD5 hash:
6de8cc7ae71db27b0b6817e99ab668f1
SHA1 hash:
5696916971ac41d6cf0dbd5622f6ddd77fb7822d
Link:
https://www.unpac.me/results/e92b939f-4ec4-455b-8906-3a47805f3824/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6eafced8bff8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/6eafced8bff8b3551777975d1f71948eb04c4490fb2e165687f77f5182dc9a23

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
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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

Formbook

Executable exe 6eafced8bff8b3551777975d1f71948eb04c4490fb2e165687f77f5182dc9a23

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/328861/

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