4ukey_11725209103415900501[.]exe

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General

Target

4ukey_11725209103415900501.exe
Size

1.6MB
MD5

d0d322015b81a8544c7c0b44a63f49b5
SHA1

4629e323ed63150c9ea1f3d3453bcdcb02db15ee
SHA256

9a2f1c08813d2012477af96a7296127544e92b9e816ab5a58da2a67925a56029
SHA512

8f14f356e5e3140d3a1bcbf0726925469a1f56a023dca7ad1c35965c7f3c84a39b33299c0bfa0d7b0189d83413ba51fd98871c707b1d5659c3cc91b37371e61a
SSDEEP

49152:MqU+lyxZS9qgC4ehhn6j4LCzg03s+eYT3VNRFfGOcfy45n40Kzz++BGtZUhVWoN3:AoyxZSbmhDLCzV3Wa35Ff0fy840Kzz+a

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

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

upx

resource	yara_rule
sample	upx

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/out.upx

Files

4ukey_11725209103415900501.exe
.exe windows:5 windows x86 arch:x86

Code Sign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/08/2022, 00:00

Not After

09/11/2031, 23:59

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

23/03/2022, 00:00

Not After

22/03/2037, 23:59

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

29/04/2021, 00:00

Not After

28/04/2036, 23:59

Subject

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

14/07/2023, 00:00

Not After

13/10/2034, 23:59

Subject

CN=DigiCert Timestamp 2023,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

04:58:65:49:c2:44:d5:21:ff:12:78:e8:9b:a2:3b:d3
Certificate

Issuer

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Not Before

13/09/2023, 00:00

Not After

11/09/2026, 23:59

Subject

SERIALNUMBER=3086133,CN=Tenorshare (Hongkong) Limited,O=Tenorshare (Hongkong) Limited,L=Sheung Wan,C=HK,2.5.4.15=#131450726976617465206f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#1302484b

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

60:8d:72:a6:2e:15:81:99:9e:47:e1:5d:29:0f:3b:ad:95:5e:b7:97:20:2b:34:01:42:f0:62:65:46:bf:d8:51
Signer

Actual PE Digest

60:8d:72:a6:2e:15:81:99:9e:47:e1:5d:29:0f:3b:ad:95:5e:b7:97:20:2b:34:01:42:f0:62:65:46:bf:d8:51

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Sections

UPX0
Size: - Virtual size: 1.8MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 1.4MB - Virtual size: 1.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 167KB - Virtual size: 168KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows:5 windows x86 arch:x86

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Exports

Exports

CreateExportObj
DestroyExportObj
NSISLog
curl_easy_cleanup
curl_easy_duphandle
curl_easy_escape
curl_easy_getinfo
curl_easy_header
curl_easy_init
curl_easy_nextheader
curl_easy_pause
curl_easy_perform
curl_easy_recv
curl_easy_reset
curl_easy_send
curl_easy_setopt
curl_easy_strerror
curl_easy_unescape
curl_easy_upkeep
curl_escape
curl_formadd
curl_formfree
curl_formget
curl_free
curl_getdate
curl_getenv
curl_global_cleanup
curl_global_init
curl_global_init_mem
curl_global_sslset
curl_maprintf
curl_mfprintf
curl_mime_addpart
curl_mime_data
curl_mime_data_cb
curl_mime_encoder
curl_mime_filedata
curl_mime_filename
curl_mime_free
curl_mime_headers
curl_mime_init
curl_mime_name
curl_mime_subparts
curl_mime_type
curl_mprintf
curl_msnprintf
curl_msprintf
curl_multi_add_handle
curl_multi_assign
curl_multi_cleanup
curl_multi_fdset
curl_multi_info_read
curl_multi_init
curl_multi_perform
curl_multi_poll
curl_multi_remove_handle
curl_multi_setopt
curl_multi_socket
curl_multi_socket_action
curl_multi_socket_all
curl_multi_strerror
curl_multi_timeout
curl_multi_wait
curl_multi_wakeup
curl_mvaprintf
curl_mvfprintf
curl_mvprintf
curl_mvsnprintf
curl_mvsprintf
curl_share_cleanup
curl_share_init
curl_share_setopt
curl_share_strerror
curl_slist_append
curl_slist_free_all
curl_strequal
curl_strnequal
curl_unescape
curl_url
curl_url_cleanup
curl_url_dup
curl_url_get
curl_url_set
curl_url_strerror

Sections

.text
Size: 1.7MB - Virtual size: 1.7MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 529KB - Virtual size: 528KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 21KB - Virtual size: 68KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 21B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 756KB - Virtual size: 755KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 102KB - Virtual size: 101KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Code Sign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5aCertificate

Key Usages

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate

Extended Key Usages

Key Usages

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9Certificate

Extended Key Usages

Key Usages

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16Certificate

Extended Key Usages

Key Usages

04:58:65:49:c2:44:d5:21:ff:12:78:e8:9b:a2:3b:d3Certificate

Extended Key Usages

Key Usages

60:8d:72:a6:2e:15:81:99:9e:47:e1:5d:29:0f:3b:ad:95:5e:b7:97:20:2b:34:01:42:f0:62:65:46:bf:d8:51Signer

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 1.8MB

UPX1 Size: 1.4MB - Virtual size: 1.4MB

.rsrc Size: 167KB - Virtual size: 168KB

Headers

DLL Characteristics

File Characteristics

Exports

Exports

Sections

.text Size: 1.7MB - Virtual size: 1.7MB

.rdata Size: 529KB - Virtual size: 528KB

.data Size: 21KB - Virtual size: 68KB

.gfids Size: 3KB - Virtual size: 3KB

.tls Size: 512B - Virtual size: 21B

.rsrc Size: 756KB - Virtual size: 755KB

.reloc Size: 102KB - Virtual size: 101KB

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

04:58:65:49:c2:44:d5:21:ff:12:78:e8:9b:a2:3b:d3
Certificate

60:8d:72:a6:2e:15:81:99:9e:47:e1:5d:29:0f:3b:ad:95:5e:b7:97:20:2b:34:01:42:f0:62:65:46:bf:d8:51
Signer

UPX0
Size: - Virtual size: 1.8MB

UPX1
Size: 1.4MB - Virtual size: 1.4MB

.rsrc
Size: 167KB - Virtual size: 168KB

.text
Size: 1.7MB - Virtual size: 1.7MB

.rdata
Size: 529KB - Virtual size: 528KB

.data
Size: 21KB - Virtual size: 68KB

.gfids
Size: 3KB - Virtual size: 3KB

.tls
Size: 512B - Virtual size: 21B

.rsrc
Size: 756KB - Virtual size: 755KB

.reloc
Size: 102KB - Virtual size: 101KB