MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4cffb3c085e77791f93929f5fa18408829750807f7da6ee431a33904d2d1d4d7. 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 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4cffb3c085e77791f93929f5fa18408829750807f7da6ee431a33904d2d1d4d7
SHA3-384 hash: 6ee093ddd65848f55b42999931758af621e21b3343cbbfca6a307b944a47a480e53cf82414569e71e4e8d22c5e3f7453
SHA1 hash: c93a4b22a88670e04f0c2d449ec0573a727e85dc
MD5 hash: d25f471a955b9718f428a7fde21b0f21
humanhash: fillet-early-white-pip
File name:Maersk_K22TSI714881.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:646'656 bytes
First seen:2023-11-20 08:49:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:DuPvvULP69L/utEWDRSBC3dGv270SKImxkayK23jqk+/QgW3azU:WBRutELC3d3IpI83N23jf+5W
Threatray 208 similar samples on MalwareBazaar
TLSH T11DD42346A7B9AB74D2B86BF6187264150BF3A8FF4875D3089DC674D8159BF80C702B23
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
297
Origin country :
DE DE
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/459272/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Launching a process
Gathering data
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4cffb3c085e77791f93929f5fa18408829750807f7da6ee431a33904d2d1d4d7
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/6edb3b69-1e03-4c1f-9e2c-213195885887
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1345051
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses powercfg.exe to modify the power settings
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4cffb3c085e77791f93929f5fa18408829750807f7da6ee431a33904d2d1d4d7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4cffb3c085e77791f93929f5fa18408829750807f7da6ee431a33904d2d1d4d7/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-16 03:56:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jt73hqef453zd6jzfh27ugcarauxkcah67ng5zbrum4qjuwr2tlq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
3f0f2b7e3062679b5ba9559637eee1d3ab15dea790fbf3c85b69fcccb3edc8bf
Formbook
9761c8e02b65302ac53c1354d1b9c0ae5799523213d96e0b941df7699f0fa722
Formbook
e3b762b0f49f604badd73ea22cd90861766a1568211b461ce08f687ff9d22f6f
Formbook
f45cce1292aa30dc88decc03fe81e7c10a64e4302eb1e3faa81c385e36d2a1ff
Formbook
+ 198 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231120-krk38afe9w/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Unpacked files
SH256 hash:
e31c5ed0b6725c7bfb7391468c657ef94cbd0bade5ca63210d95dcb7b4eb86ab
MD5 hash:
75a885eabd0c224a4a32b0065cfb9e40
SHA1 hash:
069b9a8f47d3117e2a022d6341de59e41b261860
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/6fce7086-e9d9-4e11-897d-4e58926888ca/
Parent samples :
be9fa4bd2766fc5e1d06a60c8e9fffcdb6d0c7cded097234b573abf97a19cc41
3f0f2b7e3062679b5ba9559637eee1d3ab15dea790fbf3c85b69fcccb3edc8bf
360937271a1d61e89c3be7d77f79c686292a3feff0a4b1f53d1999b51c0037fa
4cffb3c085e77791f93929f5fa18408829750807f7da6ee431a33904d2d1d4d7
6f3f99877f8716404854d6dbbb0f47ca698bf84e1968af3b84e79789e6500d6b
f93c293e7d9910b50de02d8eb89c0655232a4c13c7a117d9532548f679fc849d
SH256 hash:
148ea9b6e2892095df8d817fe46042d97096dc867967ef65fc8ff378af04ab53
MD5 hash:
f76f8c86699bfd21218a714c5837a5dd
SHA1 hash:
37e817fe1134c0416ecc604acfb0a6641d89178f
Link:
https://www.unpac.me/results/6fce7086-e9d9-4e11-897d-4e58926888ca/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/6fce7086-e9d9-4e11-897d-4e58926888ca/
SH256 hash:
76482f1dc9b0639dd6b2d762e09101875e207e8c60e146a43ca182a4c13d6afa
MD5 hash:
9561bc00330bfa400784c1b3b2075d0b
SHA1 hash:
b98f0014f428085dea5ea44108d64d9119e3d698
Link:
https://www.unpac.me/results/6fce7086-e9d9-4e11-897d-4e58926888ca/
SH256 hash:
2374f4259560e44855826f36f6468102b3c35b736b69cd9332fa9b7e16d82896
MD5 hash:
612b49929dbedadee2cdfaa4cc4b9d24
SHA1 hash:
744e4dfef44a256d4bc3a64c967a48a43559b043
Link:
https://www.unpac.me/results/6fce7086-e9d9-4e11-897d-4e58926888ca/
SH256 hash:
27e59ba8fd8b0792d6711f1fb65edf41b572023d38f1cef212292ffcd142c301
MD5 hash:
09a7c0a7532cd3f00551dca8de7b38ca
SHA1 hash:
e7fc81d7772faeaca61624ff9ba8fe6a58575e4b
Link:
https://www.unpac.me/results/6fce7086-e9d9-4e11-897d-4e58926888ca/
SH256 hash:
137decd8e7e8922d4f962f6778407737d411fde720e3165098260a62a095ac54
MD5 hash:
4822fc1f95659606199fae6c2ea8941c
SHA1 hash:
d58ba8c4ceb60ac1beb3dad13f04911e63f43d2b
Link:
https://www.unpac.me/results/6fce7086-e9d9-4e11-897d-4e58926888ca/
SH256 hash:
24e625f584e399679e0f566d60a7c4dd8be8a5a5a720f38da2c996524df6ea3c
MD5 hash:
868847a87af82e84bd6ebf28c114952a
SHA1 hash:
c80f67c6d57379147b09d2e31f183b625b1f35df
Link:
https://www.unpac.me/results/6fce7086-e9d9-4e11-897d-4e58926888ca/
SH256 hash:
13fd982e1bc200b16661de5723411ff5a9b15794161aeaa1471c25dd0305dec9
MD5 hash:
14620b0ad060e44d6f956844ac50271e
SHA1 hash:
ae1b1f756f61f5f7ac8c4ff958a964aed2cc4585
Link:
https://www.unpac.me/results/6fce7086-e9d9-4e11-897d-4e58926888ca/
SH256 hash:
4e65ce94ef4c339f0a032248c7a8040baca8c62df11be2d241b05d583da5e9f6
MD5 hash:
5c9c56e769033be7df63db7f8a643185
SHA1 hash:
916bb1a5528e9b26b362a63d4e4f4de30341a990
Link:
https://www.unpac.me/results/6fce7086-e9d9-4e11-897d-4e58926888ca/
SH256 hash:
390f7c7ea149c52c440772157c43752325568197591503dbce8add74112b684f
MD5 hash:
af3f4eb3a8dc4c7cd10e2322f7ffcb35
SHA1 hash:
596cb6fba23c5f9b1786d7881cf256338d1a2120
Link:
https://www.unpac.me/results/6fce7086-e9d9-4e11-897d-4e58926888ca/
SH256 hash:
4cffb3c085e77791f93929f5fa18408829750807f7da6ee431a33904d2d1d4d7
MD5 hash:
d25f471a955b9718f428a7fde21b0f21
SHA1 hash:
c93a4b22a88670e04f0c2d449ec0573a727e85dc
Link:
https://www.unpac.me/results/6fce7086-e9d9-4e11-897d-4e58926888ca/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

Executable exe 4cffb3c085e77791f93929f5fa18408829750807f7da6ee431a33904d2d1d4d7

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/459272/

Comments