gcleaner | c24e160a7ac7effdff8fce20a39fe043de0a57b5d5514ec2ea59fd1809822906

General

Target

file.exe
Size

1.9MB
MD5

e05502a1e3564e1eb7d2825656a37da3
SHA1

3eef8f3fd3186c60c50347c773a501ee0324161a
SHA256

c24e160a7ac7effdff8fce20a39fe043de0a57b5d5514ec2ea59fd1809822906
SHA512

87ebfe7080f8ec62c9388ea0e1d2f2c7a71a4d0c5ce1272eb0106c4a61c0b31ac36f39896d377f081520fdee1280afd21dd20c7a6a4b8c72d682a93d68338eb2
SSDEEP

49152:EGlJfsLiq6c024bnUjrG273Kr2NY5mq5ZpD5dlLYp:5HO0dDHYKq/q5ZpNPYp

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

45.12.253.56

45.12.253.72

45.12.253.98

45.12.253.75

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

FRec325.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation FRec325.exe
Executes dropped EXE 3 IoCs

Processes:

is-H7N0Q.tmpFRec325.exefJqvJje.exe

pid process

1268 is-H7N0Q.tmp
4400 FRec325.exe
5040 fJqvJje.exe
Loads dropped DLL 1 IoCs

Processes:

is-H7N0Q.tmp

pid process

1268 is-H7N0Q.tmp
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	FRec325.exe

pid	process
1268	is-H7N0Q.tmp
4400	FRec325.exe
5040	fJqvJje.exe

pid	process
1268	is-H7N0Q.tmp

Drops file in Program Files directory 9 IoCs

Processes:

is-H7N0Q.tmp

description	ioc	process
File opened for modification	C:\Program Files (x86)\FJEsoftFR\FRec325\FRec325.exe	is-H7N0Q.tmp
File created	C:\Program Files (x86)\FJEsoftFR\FRec325\unins000.dat	is-H7N0Q.tmp
File created	C:\Program Files (x86)\FJEsoftFR\FRec325\is-3RA2K.tmp	is-H7N0Q.tmp
File created	C:\Program Files (x86)\FJEsoftFR\FRec325\is-R7ADO.tmp	is-H7N0Q.tmp
File created	C:\Program Files (x86)\FJEsoftFR\FRec325\data\is-AF5IH.tmp	is-H7N0Q.tmp
File opened for modification	C:\Program Files (x86)\FJEsoftFR\FRec325\unins000.dat	is-H7N0Q.tmp
File created	C:\Program Files (x86)\FJEsoftFR\FRec325\is-L2N2C.tmp	is-H7N0Q.tmp
File created	C:\Program Files (x86)\FJEsoftFR\FRec325\is-HS074.tmp	is-H7N0Q.tmp
File created	C:\Program Files (x86)\FJEsoftFR\FRec325\is-9VF05.tmp	is-H7N0Q.tmp

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2184 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

FRec325.exe

pid process

4400 FRec325.exe
4400 FRec325.exe
4400 FRec325.exe
4400 FRec325.exe
4400 FRec325.exe
4400 FRec325.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2184 taskkill.exe

pid	process
2184	taskkill.exe

pid	process
4400	FRec325.exe
4400	FRec325.exe
4400	FRec325.exe
4400	FRec325.exe
4400	FRec325.exe
4400	FRec325.exe

description	pid	process
Token: SeDebugPrivilege	2184	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

file.exeis-H7N0Q.tmpFRec325.execmd.exe

description	pid	process	target process
PID 4248 wrote to memory of 1268	4248	file.exe	is-H7N0Q.tmp
PID 4248 wrote to memory of 1268	4248	file.exe	is-H7N0Q.tmp
PID 4248 wrote to memory of 1268	4248	file.exe	is-H7N0Q.tmp
PID 1268 wrote to memory of 4400	1268	is-H7N0Q.tmp	FRec325.exe
PID 1268 wrote to memory of 4400	1268	is-H7N0Q.tmp	FRec325.exe
PID 1268 wrote to memory of 4400	1268	is-H7N0Q.tmp	FRec325.exe
PID 4400 wrote to memory of 5040	4400	FRec325.exe	fJqvJje.exe
PID 4400 wrote to memory of 5040	4400	FRec325.exe	fJqvJje.exe
PID 4400 wrote to memory of 5040	4400	FRec325.exe	fJqvJje.exe
PID 4400 wrote to memory of 3744	4400	FRec325.exe	cmd.exe
PID 4400 wrote to memory of 3744	4400	FRec325.exe	cmd.exe
PID 4400 wrote to memory of 3744	4400	FRec325.exe	cmd.exe
PID 3744 wrote to memory of 2184	3744	cmd.exe	taskkill.exe
PID 3744 wrote to memory of 2184	3744	cmd.exe	taskkill.exe
PID 3744 wrote to memory of 2184	3744	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4248

C:\Users\Admin\AppData\Local\Temp\is-O1UDI.tmp\is-H7N0Q.tmp
"C:\Users\Admin\AppData\Local\Temp\is-O1UDI.tmp\is-H7N0Q.tmp" /SL4 $90038 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1766474 52736
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1268

C:\Program Files (x86)\FJEsoftFR\FRec325\FRec325.exe
"C:\Program Files (x86)\FJEsoftFR\FRec325\FRec325.exe"
3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4400

C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\fJqvJje.exe
4⤵
- Executes dropped EXE
PID:5040

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "FRec325.exe" /f & erase "C:\Program Files (x86)\FJEsoftFR\FRec325\FRec325.exe" & exit
4⤵
- Suspicious use of WriteProcessMemory
PID:3744

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "FRec325.exe" /f
5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2184

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\FJEsoftFR\FRec325\FRec325.exe
Filesize
2.1MB

MD5
ea108e0528aee7b43925e8310bc3b274

SHA1
e3b653ea181634dd30411b365863facf41c49603

SHA256
32865e21722ab9ce34e1db909c2e1741b1e2004669f9fa3c94cca3beb4f4d4a9

SHA512
503cb33e8f9c308eb2e6018823e8ee78c880c5fe68865c99f17c43031e86165e8188587f50eeeaa805b16f5f9a934e9cb5cfd8a2d917129af8f911bc35a33a7d

Download Submit
C:\Program Files (x86)\FJEsoftFR\FRec325\FRec325.exe
Filesize
2.1MB

MD5
ea108e0528aee7b43925e8310bc3b274

SHA1
e3b653ea181634dd30411b365863facf41c49603

SHA256
32865e21722ab9ce34e1db909c2e1741b1e2004669f9fa3c94cca3beb4f4d4a9

SHA512
503cb33e8f9c308eb2e6018823e8ee78c880c5fe68865c99f17c43031e86165e8188587f50eeeaa805b16f5f9a934e9cb5cfd8a2d917129af8f911bc35a33a7d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YYL8D8JJ\dll[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-O1UDI.tmp\is-H7N0Q.tmp
Filesize
659KB

MD5
63bdf487b26c0886dbced14bab4d4257

SHA1
e3621d870aa54d552861f1c71dea1fb36d71def6

SHA256
ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a

SHA512
b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-O1UDI.tmp\is-H7N0Q.tmp
Filesize
659KB

MD5
63bdf487b26c0886dbced14bab4d4257

SHA1
e3621d870aa54d552861f1c71dea1fb36d71def6

SHA256
ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a

SHA512
b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-VQ37J.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\fJqvJje.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\fJqvJje.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/1268-150-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/1268-180-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1268-198-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4248-179-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4248-199-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4248-133-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4400-166-0x0000000000400000-0x0000000001425000-memory.dmp

Filesize
16.1MB

Download
memory/4400-174-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/4400-181-0x0000000000400000-0x0000000001425000-memory.dmp

Filesize
16.1MB

Download
memory/4400-165-0x0000000000400000-0x0000000001425000-memory.dmp

Filesize
16.1MB

Download
memory/4400-197-0x0000000000400000-0x0000000001425000-memory.dmp

Filesize
16.1MB

Download

Analysis

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