f_000643[.]zip

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General

Target

f_000643.zip
Size

111KB
MD5

dddbcf3ded1ea10159a8984e4cd07eee
SHA1

94af259060309687cb0c39b1bc326870f4b4e0b8
SHA256

11faa0a2118e251afa9a1bf51466bf31dcba797ea8cb724628de23d953411662
SHA512

87088b0c068e476e9dd40cb3510258c7ad2d790bf9c2239dd60f16ece353723a205cfe0e58aafbe34dbb5b56dece757acfbd197226813c3fe9a4fc4acea1b919
SSDEEP

3072:ENdW1ED+45Rt/w/bV3jQzpQIJZKnTAD1BOqq+bOkreDAe:ESGP5L/qVZlu1Bfq+bKL

Score

10^/10

upx

Malware Config

Signatures

Nirsoft 1 IoCs

resource	yara_rule
static1/unpack003/out.upx	Nirsoft

UPX packed file 1 IoCs

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

upx

resource	yara_rule
static1/unpack002/BulkFileChanger.exe	upx

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack003/out.upx

Files

f_000643.zip
.zip

Password: infected
f_000643
.zip
BulkFileChanger.chm
.chm
BulkFileChanger.exe
.exe windows:4 windows x86 arch:x86

Code Sign

f7:a0:a7:30:c8:7d:94:cd:83:02:e3:ea:7f:66:1b:b7
Certificate

Issuer

CN=Sectigo RSA Code Signing CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

09-09-2019 00:00

Not After

09-09-2023 23:59

Subject

CN=Nir Sofer,O=Nir Sofer,POSTALCODE=7135117,STREET=Dakar 21\, Unit 82,L=Lod,C=IL

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

1d:a2:48:30:6f:9b:26:18:d0:82:e0:96:7d:33:d3:6a
Certificate

Issuer

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Not Before

02-11-2018 00:00

Not After

31-12-2030 23:59

Subject

CN=Sectigo RSA Code Signing CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageCodeSigning
ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

8c:77:a0:00:8f:f4:d1:b0:c6:3d:9f:3a:48:83:8d:6b
Certificate

Issuer

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

23-10-2020 00:00

Not After

22-01-2032 23:59

Subject

CN=Sectigo RSA Time Stamping Signer #2,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

Issuer

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Not Before

02-05-2019 00:00

Not After

18-01-2038 23:59

Subject

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

b3:44:e4:a7:a0:06:e3:ee:00:2b:08:01:2b:31:1e:11:7c:cc:bb:a8:d7:31:ac:9a:09:3f:c1:e9:df:d9:b7:51
Signer

Actual PE Digest

b3:44:e4:a7:a0:06:e3:ee:00:2b:08:01:2b:31:1e:11:7c:cc:bb:a8:d7:31:ac:9a:09:3f:c1:e9:df:d9:b7:51

Digest Algorithm

sha256

PE Digest Matches

true

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Sections

UPX0
Size: - Virtual size: 68KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 41KB - Virtual size: 44KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 4KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows:4 windows x86 arch:x86

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Sections

.text
Size: 57KB - Virtual size: 56KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 14KB - Virtual size: 13KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1024B - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 17KB - Virtual size: 17KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
readme.txt

Sharing

General

Malware Config

Signatures

Files

Password: infected

Code Sign

f7:a0:a7:30:c8:7d:94:cd:83:02:e3:ea:7f:66:1b:b7Certificate

Extended Key Usages

Key Usages

1d:a2:48:30:6f:9b:26:18:d0:82:e0:96:7d:33:d3:6aCertificate

Extended Key Usages

Key Usages

8c:77:a0:00:8f:f4:d1:b0:c6:3d:9f:3a:48:83:8d:6bCertificate

Extended Key Usages

Key Usages

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9Certificate

Extended Key Usages

Key Usages

b3:44:e4:a7:a0:06:e3:ee:00:2b:08:01:2b:31:1e:11:7c:cc:bb:a8:d7:31:ac:9a:09:3f:c1:e9:df:d9:b7:51Signer

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 68KB

UPX1 Size: 41KB - Virtual size: 44KB

.rsrc Size: 4KB - Virtual size: 8KB

Headers

File Characteristics

Sections

.text Size: 57KB - Virtual size: 56KB

.rdata Size: 14KB - Virtual size: 13KB

.data Size: 1024B - Virtual size: 5KB

.rsrc Size: 17KB - Virtual size: 17KB

f7:a0:a7:30:c8:7d:94:cd:83:02:e3:ea:7f:66:1b:b7
Certificate

1d:a2:48:30:6f:9b:26:18:d0:82:e0:96:7d:33:d3:6a
Certificate

8c:77:a0:00:8f:f4:d1:b0:c6:3d:9f:3a:48:83:8d:6b
Certificate

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

b3:44:e4:a7:a0:06:e3:ee:00:2b:08:01:2b:31:1e:11:7c:cc:bb:a8:d7:31:ac:9a:09:3f:c1:e9:df:d9:b7:51
Signer

UPX0
Size: - Virtual size: 68KB

UPX1
Size: 41KB - Virtual size: 44KB

.rsrc
Size: 4KB - Virtual size: 8KB

.text
Size: 57KB - Virtual size: 56KB

.rdata
Size: 14KB - Virtual size: 13KB

.data
Size: 1024B - Virtual size: 5KB

.rsrc
Size: 17KB - Virtual size: 17KB