cobaltstrike | 2024-05-22_3a889104c035a2c1447bb452828c6c3e_cobalt-strike_cobaltstrike

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General

Target
2024-05-22_3a889104c035a2c1447bb452828c6c3e_cobalt-strike_cobaltstrike
Size 5.2MB
Sample240522-2c1c2abd34
SHA256 c6fecfb91839d394289b07f097a72bf45716971956582219e97db75d2a16a6ef
MD5 3a889104c035a2c1447bb452828c6c3e
SHA1 8145618dcc6aa1d13666ba67604e60cf57fc96c2
SHA512 88d1e2c703ea4f06706bca0985e84b2c963902bcad012fda210939e15f80f8c0de72b9a70e7afc5ba608b5b4c540aae580d33d4a6ce21d761312b8d81c4e19ce
SSDEEP 98304:SW1qiPgxn+cuSuxx8Svt73qq36IdKtVxNw6pUkp3bkbRx2Uf:53EnsxxDt73DdKrwapwbxf
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

upx 0 miner cobaltstrike xmrig

Malware Config

Extracted

Family

cobaltstrike

Botnet

http://ns7.softline.top:443/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books
http://ns8.softline.top:443/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books
http://ns9.softline.top:443/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books

Attributes

access_type
512
beacon_type
256
create_remote_thread
768
crypto_scheme
256
host
ns7.softline.top,/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books,ns8.softline.top,/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books,ns9.softline.top,/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books
http_header1
AAAACgAAAAtBY2NlcHQ6ICovKgAAAAoAAAAUSG9zdDogd3d3LmFtYXpvbi5jb20AAAAHAAAAAAAAAAMAAAACAAAADnNlc3Npb24tdG9rZW49AAAAAgAAAAxza2luPW5vc2tpbjsAAAABAAAALGNzbS1oaXQ9cy0yNEtVMTFCQjgyUlpTWUdKM0JES3wxNDE5ODk5MDEyOTk2AAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
http_header2
AAAACgAAAAtBY2NlcHQ6ICovKgAAAAoAAAAWQ29udGVudC1UeXBlOiB0ZXh0L3htbAAAAAoAAAAgWC1SZXF1ZXN0ZWQtV2l0aDogWE1MSHR0cFJlcXVlc3QAAAAKAAAAFEhvc3Q6IHd3dy5hbWF6b24uY29tAAAACQAAAApzej0xNjB4NjAwAAAACQAAABFvZT1vZT1JU08tODg1OS0xOwAAAAcAAAAAAAAABQAAAAJzbgAAAAkAAAAGcz0zNzE3AAAACQAAACJkY19yZWY9aHR0cCUzQSUyRiUyRnd3dy5hbWF6b24uY29tAAAABwAAAAEAAAADAAAABAAAAAAAAA==
http_method1
GET
http_method2
POST
maxdns
255
pipe_name
\\%s\pipe\msagent_%x
polling_time
5000
port_number
443
sc_process32
%windir%\syswow64\rundll32.exe
sc_process64
%windir%\sysnative\rundll32.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDI579oVVII0cYncGonU6vTWyFhqmq8w5QwvI8qsoWeV68Ngy+MjNPX2crcSVVWKQ3j09FII28KTmoE1XFVjEXF3WytRSlDe1OKfOAHX3XYkS9LcUAy0eRl2h4a73hrg1ir/rpisNT6hHtYaK3tmH8DgW/n1XfTfbWk1MZ7cXQHWQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
4096
unknown2
AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/N4215/adj/amzn.us.sr.aps
user_agent
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko
watermark
0

Signatures

Cobalt Strike reflective loader 1 IoCs

Detects the reflective loader used by Cobalt Strike.

resource	yara_rule
sample	cobalt_reflective_dll

Cobaltstrike family
cobaltstrike

Detects Reflective DLL injection artifacts 1 IoCs

resource	yara_rule
sample	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects executables containing URLs to raw contents of a Github gist 1 IoCs

resource	yara_rule
static1/unpack001/out.upx	INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
sample	UPX

XMRig Miner payload 1 IoCs

miner

resource	yara_rule
static1/unpack001/out.upx	xmrig

Xmrig family
xmrig

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
sample	upx

Unsigned PE 2 IoCs

Checks for missing Authenticode signature.

resource
2024-05-22_3a889104c035a2c1447bb452828c6c3e_cobalt-strike_cobaltstrike
unpack001/out.upx

File Explorer

2024-05-22_3a889104c035a2c1447bb452828c6c3e_cobalt-strike_cobaltstrike

.exe 5.2MB
out.upx

.exe 10.0MB

2024-05-22_3a889104c035a2c1447bb452828c6c3e_cobalt-strike_cobaltstrike

SHA256 c6fecfb91839d394289b07f097a72bf45716971956582219e97db75d2a16a6ef
MD5 3a889104c035a2c1447bb452828c6c3e
SHA1 8145618dcc6aa1d13666ba67604e60cf57fc96c2
SHA512 88d1e2c703ea4f06706bca0985e84b2c963902bcad012fda210939e15f80f8c0de72b9a70e7afc5ba608b5b4c540aae580d33d4a6ce21d761312b8d81c4e19ce
SSDEEP 98304:SW1qiPgxn+cuSuxx8Svt73qq36IdKtVxNw6pUkp3bkbRx2Uf:53EnsxxDt73DdKrwapwbxf
MD5 SHA1 SHA512 SSDEEP

windows:4 windows x64 arch:x64

Cobalt Strike reflective loader

Detects the reflective loader used by Cobalt Strike.
Detects Reflective DLL injection artifacts
UPX dump on OEP (original entry point)
UPX packed file

Detects executables packed with UPX/modified UPX open source packer.

upx
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

13323200

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

DLL Characteristics

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_DEBUG_STRIPPED

PDB paths

out.upx

SHA256 b4234a7e99e36e1fc5c15aef5958b744a05dfa2678153b84ebd45b0cd694eed8
MD5 0ce5fdeb07b85125c49e8080ae84d8e0
SHA1 f7839ba29ba3f4c13d52ce996f9868e38e726a76
SHA512 9a7c61a3fc7fd9237062994f84c0994ef35d0d3d49674b81f053b2c9801ce1d1aacb294f70cf6ab3430df7e1924c86b7974da4f34fcf1351f2d83a2de964f026
SSDEEP 196608:3vg6YpjCa8BMHwNuD7PKUNwabNJvmrMQwHEFoW:3YXpkG6uDBuQjmrOH
MD5 SHA1 SHA512 SSDEEP

windows:4 windows x64 arch:x64

Cobalt Strike reflective loader

Detects the reflective loader used by Cobalt Strike.
Detects Reflective DLL injection artifacts
Detects executables containing URLs to raw contents of a Github gist
UPX dump on OEP (original entry point)
XMRig Miner payload

miner
UPX packed file

Detects executables packed with UPX/modified UPX open source packer.

upx
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

5344

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

DLL Characteristics

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_DEBUG_STRIPPED

PDB paths

Name

.text

Size

6.1MB

Virtual Size

6.1MB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.data

Size

284KB

Virtual Size

283KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rdata

Size

3.3MB

Virtual Size

3.3MB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.pdata

Size

150KB

Virtual Size

150KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.xdata

Size

164KB

Virtual Size

163KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.bss

Size

Virtual Size

2.7MB

Characteristics

IMAGE_SCN_CNT_UNINITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.idata

Size

16KB

Virtual Size

16KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.CRT

Size

512B

Virtual Size

112B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.tls

Size

512B

Virtual Size

16B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

2024-05-22_3a889104c035a2c1447bb452828c6c3e_cobalt-strike_cobaltstrike

generic

out.upx

generic