cobaltstrike | 2026-09-10_c621a140d7138201e32464f4bca839f2_amadey_cobalt-strike_coinminer_smoke-loader

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General

Target
2026-09-10_c621a140d7138201e32464f4bca839f2_amadey_cobalt-strike_coinminer_smoke-loader
Size 5.4MB
Sample260910-mw5drsvxhs
SHA256 2c1885b8b51bc176727c5dcede06a8e81bbfc795996517746abf733bd3d36fa7
MD5 c621a140d7138201e32464f4bca839f2
SHA1 e8f0bb4b5debe59c5caed8c064f22d9a1981a1f6
SHA512 d2ebfa339c791549c1878abbb16557d804612fe22801f82bd0f45df5e7f174b9d8e7ff22037f509dcff277851423f72242b5111dcd9bf8a1241c085612c04e10
SSDEEP 98304:aIZAxzp4OwEpjoyYRshEAlOw+Je5rFrmTox8psUk:aIZ4lrVBoyYRshEAlsefma4Hk
TLSH
T1FC46238678E0C4F6D467213EB707C2A1A5F9B8B82B42940237F4ADC43537A973779B46
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

upx 0 miner trojan backdoor 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,ns8.softline.top,ns9.softline.top
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

Family: Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike
Family: xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
miner xmrig

Cobalt Strike reflective loader 1 IoCs

Detects the reflective loader used by Cobalt Strike.

resource	yara_rule
sample	cobalt_reflective_dll

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

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
2026-09-10_c621a140d7138201e32464f4bca839f2_amadey_cobalt-strike_coinminer_smoke-loader
unpack001/out.upx

File Explorer

2026-09-10_c621a140d7138201e32464f4bca839f2_amadey_cobalt-strike_coinminer_smoke-loader

.exe 5.4MB
out.upx

.exe 10.0MB

2026-09-10_c621a140d7138201e32464f4bca839f2_amadey_cobalt-strike_coinminer_smoke-loader

SHA256 2c1885b8b51bc176727c5dcede06a8e81bbfc795996517746abf733bd3d36fa7
MD5 c621a140d7138201e32464f4bca839f2
SHA1 e8f0bb4b5debe59c5caed8c064f22d9a1981a1f6
SHA512 d2ebfa339c791549c1878abbb16557d804612fe22801f82bd0f45df5e7f174b9d8e7ff22037f509dcff277851423f72242b5111dcd9bf8a1241c085612c04e10
SSDEEP 98304:aIZAxzp4OwEpjoyYRshEAlOw+Je5rFrmTox8psUk:aIZ4lrVBoyYRshEAlsefma4Hk
TLSH
T1FC46238678E0C4F6D467213EB707C2A1A5F9B8B82B42940237F4ADC43537A973779B46
MD5 SHA1 SHA512 SSDEEP TLSH

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

13322736

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 49d432a82f65aecf6888f19d78eef8c1b44f273abf6f81f01ef37808860b067f
MD5 60e6ba1aeb74a7c81ef0ee205d696a6d
SHA1 dcbd223bab7e9a0f6f09abb24d32acefe5647e61
SHA512 49940860852f7e57e89e23f53e99863ed9aeb5deebfa68bb38ec0268b7c46d9a621a410f4a2464bfa954348b464b86781ab322a250338e4c54b88377098b3c98
SSDEEP 196608:/2XrSIqtPazmgL7uDbzV0xpZr8o37nmPQLi7gCsL:/aWIPyquDCzzmPfgC
TLSH
T1C1B67C27F4A300FDC67ED17086579772BA31786A42307BAB1F90EA751E12F906B2E714
MD5 SHA1 SHA512 SSDEEP TLSH

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

2026-09-10_c621a140d7138201e32464f4bca839f2_amadey_cobalt-strike_coinminer_smoke-loader

generic

out.upx

generic