ramnit | 380232c4d78e4c015ab8469ff62c8f2d4d44f2ebbc3aca0baf26d785402d87dc

Analysis

max time kernel
121s
max time network
132s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-04-2024 09:30

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General

Target

380232c4d78e4c015ab8469ff62c8f2d4d44f2ebbc3aca0baf26d785402d87dc.dll
Size

353KB
MD5

c04f67210a558c26d0132036cb2d0c25
SHA1

5896f685f25d4908826960d5dd3e0e82ce2e00c1
SHA256

380232c4d78e4c015ab8469ff62c8f2d4d44f2ebbc3aca0baf26d785402d87dc
SHA512

825857f3e8020003cd6bf2acac6be61e3174be77ed9aeea77f8cfb6e277d601abdb575f84fac5df3683d225df9902e048a05c10254519170bf811e5917d9b2cd
SSDEEP

6144:O1HCQc7/p7NthksJroUcdp1bw/uu+eLDXfbrTrzDIPS0iYrp1Hfmn1T:O1HCQOTthksJroUmp1bw/5DXfbzz0PSn

Score

10^/10

ramnit banker spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit

Executes dropped EXE 2 IoCs

pid	Process
2340	rundll32Srv.exe
1292	DesktopLayer.exe

Loads dropped DLL 2 IoCs

pid	Process
920	rundll32.exe
2340	rundll32Srv.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c0000000133a4-3.dat	upx
behavioral1/memory/920-5-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1292-21-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2340-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px4A88.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{1BF7B661-FC9D-11EE-8795-52ADCDCA366E} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "419508089"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1292	DesktopLayer.exe
1292	DesktopLayer.exe
1292	DesktopLayer.exe
1292	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2996	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2996	iexplore.exe
2996	iexplore.exe
2628	IEXPLORE.EXE
2628	IEXPLORE.EXE
2628	IEXPLORE.EXE
2628	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 920	2960	rundll32.exe	28
PID 2960 wrote to memory of 920	2960	rundll32.exe	28
PID 2960 wrote to memory of 920	2960	rundll32.exe	28
PID 2960 wrote to memory of 920	2960	rundll32.exe	28
PID 2960 wrote to memory of 920	2960	rundll32.exe	28
PID 2960 wrote to memory of 920	2960	rundll32.exe	28
PID 2960 wrote to memory of 920	2960	rundll32.exe	28
PID 920 wrote to memory of 2340	920	rundll32.exe	29
PID 920 wrote to memory of 2340	920	rundll32.exe	29
PID 920 wrote to memory of 2340	920	rundll32.exe	29
PID 920 wrote to memory of 2340	920	rundll32.exe	29
PID 2340 wrote to memory of 1292	2340	rundll32Srv.exe	30
PID 2340 wrote to memory of 1292	2340	rundll32Srv.exe	30
PID 2340 wrote to memory of 1292	2340	rundll32Srv.exe	30
PID 2340 wrote to memory of 1292	2340	rundll32Srv.exe	30
PID 1292 wrote to memory of 2996	1292	DesktopLayer.exe	31
PID 1292 wrote to memory of 2996	1292	DesktopLayer.exe	31
PID 1292 wrote to memory of 2996	1292	DesktopLayer.exe	31
PID 1292 wrote to memory of 2996	1292	DesktopLayer.exe	31
PID 2996 wrote to memory of 2628	2996	iexplore.exe	32
PID 2996 wrote to memory of 2628	2996	iexplore.exe	32
PID 2996 wrote to memory of 2628	2996	iexplore.exe	32
PID 2996 wrote to memory of 2628	2996	iexplore.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\380232c4d78e4c015ab8469ff62c8f2d4d44f2ebbc3aca0baf26d785402d87dc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\380232c4d78e4c015ab8469ff62c8f2d4d44f2ebbc3aca0baf26d785402d87dc.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:920
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:2340
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1292
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:2996
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2996 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
cf68a5706f7684ca8945286167db2b2c

SHA1
4f63c8aaebc961e21b57c8d34e9a6d6d7501e8bb

SHA256
996ba84277ec38e2385f36834396385656fb516257fae39250f04db754e02a9c

SHA512
1f7c69bfe4203f826700c13bc50a133b4280808b90ed987589db30f13724e269cfe984d633a4673c9269714d824f739ba84e50f608b809ea3ea122f253d04527

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
9ba5d84d385fdaba2000349b969cd5f1

SHA1
2680f8783e164459c3c8f825f1324bccd5d94cec

SHA256
5fbffcdc175f5eccdecf72ba0550d3052c033b0f033cf3422708e85db3b471dc

SHA512
d25c8af5b51de843da0661f660bc6ce7128dccd5553a67948a2f1983d4e31471e1a3e5e688f71e8c6b50376eb4642c3d56ad5d105237fb801f39c08686d8d38f

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
25da4296bcc6be73a6c747007b1151e2

SHA1
c331b080dcebb1aff4b83f77a2810b1c64404fae

SHA256
4b3d6b96949f6161a8c0c87728a5c430eac8599f94757abf498f13a0a95e241b

SHA512
ee817b92a512e17d792e9e01c4312d6b38457b7997c2d6d89e6b098417f0c557d024364eed53c5141d0237305dbe0a8a39d5a2f29910f9a33b747b6a231f0f77

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
620c7f5fd09b2aa518b306a15cf45295

SHA1
4200ccfc56856afeff88a8c23a85825e747961e0

SHA256
8707b000578a009764ef911c9148eac649f2771590487b9df86094d9633a8307

SHA512
40d3ab6ca4014376c74b434b6a56621c5320b223f0e1fd2101735bd6f0e18c5816b38232195f4e5bf4abe4ff19cccd5655abae50598f669cb9d39e2392a17e6d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
8673dcf80feabe3cc254aef99316028e

SHA1
7ed893b965b1f88f7b7f24e1824aa05eba573ad1

SHA256
c6814c31032ef7a77c371a41a3ec7b8df4ec0484fd00df4bcf0e2bdc66e8a454

SHA512
9829c46c20ce25dc54e78a2fc372664c8370fd62c5479e912c593a719af64fea18638bc8a69bd898831c2829ebbb8dbcf6b748476ac75a456a2cb8a1cdf91d06

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
03c6c4c2b53661752df9dceadf4afe1e

SHA1
6d683a2f0cc6f9d08e8572038d9d57cc3efe4357

SHA256
818f8ff0b2b1666f6f0709da56d19e7ba51e7ba75b3c77e07efd4c0d2ec04e3c

SHA512
34c20cf5b87540c42528d286b231314dfc6c5f07168391cd7567d1bb9f786aa4b47c085044402fae6c2f462d148bdaecedac9e643165d10b2d399f024ffd6eac

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
fe135e1077e97c2bd1bc6e91bbfd57e7

SHA1
90aa8f5bffc979c93d191db0af76059d9d0bc41d

SHA256
3597c5ca43cc0e54f8e6c012399a1338c5381afb75789c0487a9827197a38381

SHA512
f6b758b9c6780d96b70073ae3cb50d04066f715b1eaf326f7bfe299139c52e983023334cfe03c9f2e813f743c18b44e306a0c442aa5eda584057562997d261d8

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
0ef387116fc5c7d870cce8a590f73f31

SHA1
b878ec360768899517383642115092d48db8fa25

SHA256
ecf400316fb7713af11b5fa717b93c2355d282c6c2a61df85dfb28b3fd6a941e

SHA512
1bb03c59e6f42c3047595ea1308c877bf8efdc94321e0e82eebb4dd5cd16070b4a20f03e29882c2d035e75e577a7ca52d1937ab0e36a76d8c2a1987eef9a215e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
462332975fc7e7f0dadb1d8aa17a4fa5

SHA1
0676818eb9c20ab18456c78211cfb12e2d8f5a8a

SHA256
f98f6941ec666bd83214858994f45354b2ce0e43063fd2085fd43f0a0580db15

SHA512
cf0a7b262d148af4f73a217d3b6999fdf1b8c8798300d10563ff63015addd4ac083d7240dc815a26ecf1174dedbc3aedcf9622c6248a5485d6ed94917603053c

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
6a6032dffa1b3c7c06cb6db953aadd60

SHA1
1c1925b921321b2ef0717d2fcc3c416b99fdb162

SHA256
aa1717ad71436edb8ea57449276a700c2ceea8f9b9d435bb7dd83554928b279c

SHA512
b78b392c2e2c7270ad3d5e6921c80f58afa26648983cc7ba6e7583f233ff0206aac841eb2707a2c8d269b5b47caa4b6a8aa1c91dda4e383699c1ac4b718018c6

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
0578990549a4d4ad804728327a7e6592

SHA1
cd787d746a0bd636a527a0d23767078a6a130607

SHA256
cd723aa0972c8b10aab0c8d4b0082afb85b68acaae267e974da3de95f16b4fd8

SHA512
653a9d09994a6db8a49e24ced414064b42101b914f9df86e9465bd032266e3fd33c7d2b0e978a109e040deed48ba9d7dcbab6859c640be22c47741cada4707e8

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
2e789208e77d734a4eff5dd6e6b46d0b

SHA1
a44eb44aed148fd1673f595484f4ae4747b30a8b

SHA256
3fe93154786625f8c91715a410e0c6a0e5e70c75cf1b309681b68663cb01ecda

SHA512
10b64db2ce4527103c9ec833f7301e8a0c99bf8a51e4e6784d909c16d38365a874325980fdb05ef6a913bd3e8f0e9e5a87d7a60b7f67ce17f2476e28e43b13e6

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab6154.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar6459.tmp

Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
42bacbdf56184c2fa5fe6770857e2c2d

SHA1
521a63ee9ce2f615eda692c382b16fc1b1d57cac

SHA256
d1a57e19ddb9892e423248cc8ff0c4b1211d22e1ccad6111fcac218290f246f0

SHA512
0ab916dd15278e51bccfd2ccedd80d942b0bddb9544cec3f73120780d4f7234ff7456530e1465caf3846616821d1b385b6ae58a5dff9ffe4d622902c24fd4b71

Download Submit
memory/920-5-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/920-4-0x0000000010000000-0x000000001005E000-memory.dmp

Filesize
376KB

Download
memory/920-0-0x0000000010000000-0x000000001005E000-memory.dmp

Filesize
376KB

Download
memory/920-2-0x0000000010000000-0x000000001005E000-memory.dmp

Filesize
376KB

Download
memory/1292-19-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1292-21-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1292-22-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/2340-10-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/2340-12-0x0000000000400000-0x000000000042E000-memory.dmp

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184KB

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memory/2340-20-0x0000000000240000-0x000000000026E000-memory.dmp

Filesize
184KB

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