cobaltstrike | 4a438626ac962db91cde46ee2c04c850b46262599bc535b4a08209661d5fb44d

General

Target

4a438626ac962db91cde46ee2c04c850b46262599bc535b4a08209661d5fb44d.exe
Size

724KB
MD5

bde91a78424fd430ff76a35e0f13b261
SHA1

f30cd68daf082becf0eac8efaaeb4bfe14396144
SHA256

4a438626ac962db91cde46ee2c04c850b46262599bc535b4a08209661d5fb44d
SHA512

465df8a1e6878c1bcc886db6cd194d535e9f4db27c1cc197b4708b331d0d02dbe06a78e0c2394f0f2c7550ccf84ad9fecc9c55d88129ce68a486d3f4027e0f9a
SSDEEP

12288:PqhYIofbUkXpagXo2+S+TRclgcPyxXAMr7GzC8tnfESG9W1SOkOWZm2SZYiZBKPX:PO50YkW2+NTRiqxwpzdZsSVsOmmR3Zk3

Score

10^/10

cobaltstrike 426352781 backdoor trojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

426352781

C2

http://pypi.python.org:443/latest/pip-check

Attributes

access_type
512
beacon_type
2048
host
pypi.python.org,/latest/pip-check
http_header1
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
http_header2
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
http_method1
GET
http_method2
POST
jitter
2560
polling_time
1000
port_number
443
sc_process32
%windir%\syswow64\dllhost.exe
sc_process64
%windir%\sysnative\dllhost.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCmV0fCtMxIXtGF3+FyYKSiU1yVjtm3FlG6Mej3iMRBgSTd45Sa41JLXaoOjKxePWNN4wyUUInzIPEYA6fdx4N/+zwru33xzNAdipcbN3RLZg8v3s8Zu6vVXoj7apcBJy2ObQsYhoYAialaTKe4dWOVnbUJK46Ve8gDPeudH52IRQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
1.733629184e+09
unknown2
AAAABAAAAAEAAAACAAAAAgAAAAoAAAACAAAAAAAAAA0AAAAPAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/latest/check
user_agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.125 Safari/537.36
watermark
426352781

Signatures

Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

2964 WINWORD.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

WINWORD.EXE

pid process

2964 WINWORD.EXE
2964 WINWORD.EXE
2964 WINWORD.EXE
2964 WINWORD.EXE
2964 WINWORD.EXE
2964 WINWORD.EXE
2964 WINWORD.EXE

pid	process
2964	WINWORD.EXE

pid	process
2964	WINWORD.EXE
2964	WINWORD.EXE
2964	WINWORD.EXE
2964	WINWORD.EXE
2964	WINWORD.EXE
2964	WINWORD.EXE
2964	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

4a438626ac962db91cde46ee2c04c850b46262599bc535b4a08209661d5fb44d.exe

description	pid	process	target process
PID 1048 wrote to memory of 2964	1048	4a438626ac962db91cde46ee2c04c850b46262599bc535b4a08209661d5fb44d.exe	WINWORD.EXE
PID 1048 wrote to memory of 2964	1048	4a438626ac962db91cde46ee2c04c850b46262599bc535b4a08209661d5fb44d.exe	WINWORD.EXE
PID 1048 wrote to memory of 2964	1048	4a438626ac962db91cde46ee2c04c850b46262599bc535b4a08209661d5fb44d.exe	WINWORD.EXE
PID 1048 wrote to memory of 2964	1048	4a438626ac962db91cde46ee2c04c850b46262599bc535b4a08209661d5fb44d.exe	WINWORD.EXE

C:\Users\Admin\AppData\Local\Temp\4a438626ac962db91cde46ee2c04c850b46262599bc535b4a08209661d5fb44d.exe
"C:\Users\Admin\AppData\Local\Temp\4a438626ac962db91cde46ee2c04c850b46262599bc535b4a08209661d5fb44d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1048

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\4a438626ac962db91cde46ee2c04c850b46262599bc535b4a08209661d5fb44d.doc"
2⤵
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2964

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F59A01A8B782D93EA6991BC172CEFFB1
Filesize
867B

MD5
c5dfb849ca051355ee2dba1ac33eb028

SHA1
d69b561148f01c77c54578c10926df5b856976ad

SHA256
cbb522d7b7f127ad6a0113865bdf1cd4102e7d0759af635a7cf4720dc963c53b

SHA512
88289cdd2c2dd1f5f4c13ab2cf9bc601fc634b5945309bedf9fc5b96bf21697b4cd6da2f383497825e02272816befbac4f44955282ffbbd4dd0ddc52281082da

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F59A01A8B782D93EA6991BC172CEFFB1
Filesize
242B

MD5
bd5b87e9507ca88695cbc70a5c4c47d4

SHA1
7e4f44177522515ba4f8add85b4f17a1ee3f8f77

SHA256
96f450291666d7a2dff0d7882c6d3e2826840301decd19274e7f0597d6cb707e

SHA512
7521cec10ce9da29c4598fd8a55f694cea88b216aa014acac9dceaa5ff84b27e143fa5384e6fcc61784c767f46227d18e1c3eaf128df74f97557fca9ce13f6b4

Download Submit
C:\Users\Admin\AppData\Local\Temp\4a438626ac962db91cde46ee2c04c850b46262599bc535b4a08209661d5fb44d.doc
Filesize
276KB

MD5
5a4fdb2646076d704d740327a6a88030

SHA1
9126f323d106423f7f7a70a42718ff0256ebdba7

SHA256
c7ea88d6c634b9e01735d62bd272997183e217b1929000bc723c4e052a970e45

SHA512
dad0355d1ddf50f23fab77991a1d0e926396b70976c2c23ced2cc417ae935ddae37cd9eab280b2174a139a67f58005311753290b156ac94d175977117b409014

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarE335.tmp
Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
memory/1048-8-0x00000000021D0000-0x0000000002250000-memory.dmp

Filesize
512KB

Download
memory/1048-9-0x00000000021D0000-0x0000000002250000-memory.dmp

Filesize
512KB

Download
memory/1048-10-0x0000000002150000-0x000000000219E000-memory.dmp

Filesize
312KB

Download
memory/1048-1062-0x0000000002150000-0x000000000219E000-memory.dmp

Filesize
312KB

Download
memory/2964-6-0x000000007190D000-0x0000000071918000-memory.dmp

Filesize
44KB

Download
memory/2964-1-0x000000002F951000-0x000000002F952000-memory.dmp

Filesize
4KB

Download
memory/2964-3-0x000000007190D000-0x0000000071918000-memory.dmp

Filesize
44KB

Download
memory/2964-2-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

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